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01个人课堂练习

时间:2024-06-19 23:56:01浏览次数:27  
标签:count 01 课堂练习 getString request resultSet String 个人 name

//policy

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 package bean;   public class policy {     private int id;     private String name,type,category,range,document,form,organ,viadata,pubdata,perdata,text;       public int getId() {         return id;     }       public String getText() {         return text;     }       public void setText(String text) {         this.text = text;     }       public void setId(int id) {         this.id = id;     }       public policy() {     }       public String getName() {         return name;     }       public void setName(String name) {         this.name = name;     }       public String getType() {         return type;     }       public void setType(String type) {         this.type = type;     }       public String getCategory() {         return category;     }       public void setCategory(String category) {         this.category = category;     }       public String getRange() {         return range;     }       public void setRange(String range) {         this.range = range;     }       public String getDocument() {         return document;     }       public void setDocument(String document) {         this.document = document;     }       public String getForm() {         return form;     }       public void setForm(String form) {         this.form = form;     }       public String getOrgan() {         return organ;     }       public void setOrgan(String organ) {         this.organ = organ;     }       public String getViadata() {         return viadata;     }       public void setViadata(String viadata) {         this.viadata = viadata;     }       public String getPubdata() {         return pubdata;     }       public void setPubdata(String pubdata) {         this.pubdata = pubdata;     }       public String getPerdata() {         return perdata;     }       public void setPerdata(String perdata) {         this.perdata = perdata;     }       @Override     public String toString() {         return "policy{" +                 "id=" + id +                 ", name='" + name + '\'' +                 ", type='" + type + '\'' +                 ", category='" + category + '\'' +                 ", range='" + range + '\'' +                 ", document='" + document + '\'' +                 ", form='" + form + '\'' +                 ", organ='" + organ + '\'' +                 ", viadata='" + viadata + '\'' +                 ", pubdata='" + pubdata + '\'' +                 ", perdata='" + perdata + '\'' +                 '}';     } }

  //Dao

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 package dao;   import bean.policy; import com.mysql.cj.jdbc.result.UpdatableResultSet; import util.DButil;   import java.sql.*; import java.util.ArrayList; import java.util.List; import java.util.Set;   public class Dao {     public ArrayList<policy> getall(){         ArrayList<policy> policies=new ArrayList<>();         try{             Connection connection= DButil.getConn();             String sql="select * from policy";             Statement statement=connection.createStatement();             ResultSet resultSet=statement.executeQuery(sql);             while(resultSet.next()){                 policy p=new policy();                 p.setId(resultSet.getInt("id"));                 p.setName(resultSet.getString("name"));                 p.setType(resultSet.getString("type"));                 p.setCategory(resultSet.getString("category"));                 p.setRange(resultSet.getString("range"));                 p.setDocument(resultSet.getString("document"));                 p.setForm(resultSet.getString("form"));                 p.setOrgan(resultSet.getString("organ"));                 p.setViadata(resultSet.getString("viadata"));                 p.setPubdata(resultSet.getString("pubdata"));                 p.setPerdata(resultSet.getString("perdata"));                 policies.add(p);             }         }catch (Exception e){             e.printStackTrace();         }         return policies;     }     public ArrayList<policy> chaxuntext(int cpage, int count){         String sql="select * from policy  order by pubdata limit "+((cpage-1)*count)+","+count;         ArrayList<policy> texts=new ArrayList<>();         try {             Connection connection = DButil.getConn();             Statement statement = connection.createStatement();             ResultSet resultSet=statement.executeQuery(sql);             while(resultSet.next()){                 policy p=new policy();                 p.setId(resultSet.getInt("id"));                 p.setName(resultSet.getString("name"));                 p.setType(resultSet.getString("type"));                 p.setCategory(resultSet.getString("category"));                 p.setRange(resultSet.getString("range"));                 p.setDocument(resultSet.getString("document"));                 p.setForm(resultSet.getString("form"));                 p.setOrgan(resultSet.getString("organ"));                 p.setViadata(resultSet.getString("viadata"));                 p.setPubdata(resultSet.getString("pubdata"));                 p.setPerdata(resultSet.getString("perdata"));                 p.setText(resultSet.getString("text"));                 texts.add(p);             }         catch (SQLException | ClassNotFoundException e) {             throw new RuntimeException(e);         }         return texts;     }     public ArrayList<policy> chaxunname(int cpage, int count,String name){         String sql="select * from policy where name like ?  order by pubdata limit "+((cpage-1)*count)+","+count;         ArrayList<policy> texts=new ArrayList<>();         try {             Connection connection = DButil.getConn();             PreparedStatement preparedStatement=connection.prepareStatement(sql);             preparedStatement.setString(1,"%"+name+"%");             ResultSet resultSet=preparedStatement.executeQuery();             while(resultSet.next()){                 policy p=new policy();                 p.setId(resultSet.getInt("id"));                 p.setName(resultSet.getString("name"));                 p.setType(resultSet.getString("type"));                 p.setCategory(resultSet.getString("category"));                 p.setRange(resultSet.getString("range"));                 p.setDocument(resultSet.getString("document"));                 p.setForm(resultSet.getString("form"));                 p.setOrgan(resultSet.getString("organ"));                 p.setViadata(resultSet.getString("viadata"));                 p.setPubdata(resultSet.getString("pubdata"));                 p.setPerdata(resultSet.getString("perdata"));                 p.setText(resultSet.getString("text"));                 texts.add(p);             }         catch (SQLException | ClassNotFoundException e) {             throw new RuntimeException(e);         }         return texts;     }     public ArrayList<policy> chaxundocument(int cpage, int count,String name){         String sql="select * from policy where document like ?  order by pubdata limit "+((cpage-1)*count)+","+count;         ArrayList<policy> texts=new ArrayList<>();         try {             Connection connection = DButil.getConn();             PreparedStatement preparedStatement=connection.prepareStatement(sql);             preparedStatement.setString(1,"%"+name+"%");             ResultSet resultSet=preparedStatement.executeQuery();             while(resultSet.next()){                 policy p=new policy();                 p.setId(resultSet.getInt("id"));                 p.setName(resultSet.getString("name"));                 p.setType(resultSet.getString("type"));                 p.setCategory(resultSet.getString("category"));                 p.setRange(resultSet.getString("range"));                 p.setDocument(resultSet.getString("document"));                 p.setForm(resultSet.getString("form"));                 p.setOrgan(resultSet.getString("organ"));                 p.setViadata(resultSet.getString("viadata"));                 p.setPubdata(resultSet.getString("pubdata"));                 p.setPerdata(resultSet.getString("perdata"));                 p.setText(resultSet.getString("text"));                 texts.add(p);             }         catch (SQLException | ClassNotFoundException e) {             throw new RuntimeException(e);         }         return texts;     }     public ArrayList<policy> chaxunorgan(int cpage, int count,String name){         String sql="select * from policy where organ like ?  order by pubdata limit "+((cpage-1)*count)+","+count;         ArrayList<policy> texts=new ArrayList<>();         try {             Connection connection = DButil.getConn();             PreparedStatement preparedStatement=connection.prepareStatement(sql);             preparedStatement.setString(1,"%"+name+"%");             ResultSet resultSet=preparedStatement.executeQuery();             while(resultSet.next()){                 policy p=new policy();                 p.setId(resultSet.getInt("id"));                 p.setName(resultSet.getString("name"));                 p.setType(resultSet.getString("type"));                 p.setCategory(resultSet.getString("category"));                 p.setRange(resultSet.getString("range"));                 p.setDocument(resultSet.getString("document"));                 p.setForm(resultSet.getString("form"));                 p.setOrgan(resultSet.getString("organ"));                 p.setViadata(resultSet.getString("viadata"));                 p.setPubdata(resultSet.getString("pubdata"));                 p.setPerdata(resultSet.getString("perdata"));                 p.setText(resultSet.getString("text"));                 texts.add(p);             }         catch (SQLException | ClassNotFoundException e) {             throw new RuntimeException(e);         }         return texts;     }     public ArrayList<policy> chaxun3(int cpage, int count,String name,String document,String organ){         String sql="select * from policy where organ like ? and name like ? and document like ? order by pubdata limit "+((cpage-1)*count)+","+count;         ArrayList<policy> texts=new ArrayList<>();         try {             Connection connection = DButil.getConn();             PreparedStatement preparedStatement=connection.prepareStatement(sql);             preparedStatement.setString(1,"%"+organ+"%");             preparedStatement.setString(2,"%"+name+"%");             preparedStatement.setString(3,"%"+document+"%");             ResultSet resultSet=preparedStatement.executeQuery();             while(resultSet.next()){                 policy p=new policy();                 p.setId(resultSet.getInt("id"));                 p.setName(resultSet.getString("name"));                 p.setType(resultSet.getString("type"));                 p.setCategory(resultSet.getString("category"));                 p.setRange(resultSet.getString("range"));                 p.setDocument(resultSet.getString("document"));                 p.setForm(resultSet.getString("form"));                 p.setOrgan(resultSet.getString("organ"));                 p.setViadata(resultSet.getString("viadata"));                 p.setPubdata(resultSet.getString("pubdata"));                 p.setPerdata(resultSet.getString("perdata"));                 p.setText(resultSet.getString("text"));                 texts.add(p);             }         catch (SQLException | ClassNotFoundException e) {             throw new RuntimeException(e);         }         return texts;     }     public ArrayList<policy> chaxunnameanddocument(int cpage, int count,String name,String document){         String sql="select * from policy where  name like ? and document  like ? order by pubdata limit "+((cpage-1)*count)+","+count;         ArrayList<policy> texts=new ArrayList<>();         try {             Connection connection = DButil.getConn();             PreparedStatement preparedStatement=connection.prepareStatement(sql);             preparedStatement.setString(1,"%"+name+"%");             preparedStatement.setString(2,"%"+document+"%");             ResultSet resultSet=preparedStatement.executeQuery();             while(resultSet.next()){                 policy p=new policy();                 p.setId(resultSet.getInt("id"));                 p.setName(resultSet.getString("name"));                 p.setType(resultSet.getString("type"));                 p.setCategory(resultSet.getString("category"));                 p.setRange(resultSet.getString("range"));                 p.setDocument(resultSet.getString("document"));                 p.setForm(resultSet.getString("form"));                 p.setOrgan(resultSet.getString("organ"));                 p.setViadata(resultSet.getString("viadata"));                 p.setPubdata(resultSet.getString("pubdata"));                 p.setPerdata(resultSet.getString("perdata"));                 p.setText(resultSet.getString("text"));                 texts.add(p);             }         catch (SQLException | ClassNotFoundException e) {             e.printStackTrace();         }         return texts;     }     public ArrayList<policy> chaxunnameandorgan(int cpage, int count,String name,String organ){         String sql="select * from policy where  name like ? and organ like ? order by pubdata limit "+((cpage-1)*count)+","+count;         ArrayList<policy> texts=new ArrayList<>();         try {             Connection connection = DButil.getConn();             PreparedStatement preparedStatement=connection.prepareStatement(sql);             preparedStatement.setString(1,"%"+name+"%");             preparedStatement.setString(2,"%"+organ+"%");             ResultSet resultSet=preparedStatement.executeQuery();             while(resultSet.next()){                 policy p=new policy();                 p.setId(resultSet.getInt("id"));                 p.setName(resultSet.getString("name"));                 p.setType(resultSet.getString("type"));                 p.setCategory(resultSet.getString("category"));                 p.setRange(resultSet.getString("range"));                 p.setDocument(resultSet.getString("document"));                 p.setForm(resultSet.getString("form"));                 p.setOrgan(resultSet.getString("organ"));                 p.setViadata(resultSet.getString("viadata"));                 p.setPubdata(resultSet.getString("pubdata"));                 p.setPerdata(resultSet.getString("perdata"));                 p.setText(resultSet.getString("text"));                 texts.add(p);             }         catch (SQLException | ClassNotFoundException e) {             throw new RuntimeException(e);         }         return texts;     }     public ArrayList<policy> chaxundocumentandorgan(int cpage, int count,String organ,String document){         String sql="select * from policy  where   organ like ? and document like ? order by pubdata limit "+((cpage-1)*count)+","+count;         ArrayList<policy> texts=new ArrayList<>();         try {             Connection connection = DButil.getConn();             PreparedStatement preparedStatement=connection.prepareStatement(sql);             preparedStatement.setString(1,"%"+organ+"%");             preparedStatement.setString(2,"%"+document+"%");             ResultSet resultSet=preparedStatement.executeQuery();             while(resultSet.next()){                 policy p=new policy();                 p.setId(resultSet.getInt("id"));                 p.setName(resultSet.getString("name"));                 p.setType(resultSet.getString("type"));                 p.setCategory(resultSet.getString("category"));                 p.setRange(resultSet.getString("range"));                 p.setDocument(resultSet.getString("document"));                 p.setForm(resultSet.getString("form"));                 p.setOrgan(resultSet.getString("organ"));                 p.setViadata(resultSet.getString("viadata"));                 p.setPubdata(resultSet.getString("pubdata"));                 p.setPerdata(resultSet.getString("perdata"));                 p.setText(resultSet.getString("text"));                 texts.add(p);             }         catch (SQLException | ClassNotFoundException e) {             throw new RuntimeException(e);         }         return texts;     }       public int[] alltext(int count){         String sql="select count(*) from policy";         int[] s=new int[2];         try{             Connection connection=DButil.getConn();             Statement statement=connection.createStatement();             ResultSet resultSet=statement.executeQuery(sql);             while(resultSet.next()){                 s[0]=resultSet.getInt(1);             }             if(s[0]%count==0)                 s[1]=s[0]/count;             else s[1]=s[0]/count+1;         catch (Exception e) {             e.printStackTrace();         }         return s;     }     public int[] allchaxunname(int count,String name){         String sql="select count(*) from policy where name like ?";         int[] s=new int[2];         try{             Connection connection=DButil.getConn();             PreparedStatement statement=connection.prepareStatement(sql);             statement.setString(1,"%"+name+"%");             ResultSet resultSet= statement.executeQuery();             while(resultSet.next()){                 s[0]=resultSet.getInt(1);             }             if(s[0]%count==0)                 s[1]=s[0]/count;             else s[1]=s[0]/count+1;         catch (Exception e) {             e.printStackTrace();         }         return s;     }     public int[] allchaxundo(int count,String name){         String sql="select count(*) from policy where document like ?";         int[] s=new int[2];         try{             Connection connection=DButil.getConn();             PreparedStatement statement=connection.prepareStatement(sql);             statement.setString(1,"%"+name+"%");             ResultSet resultSet= statement.executeQuery();             while(resultSet.next()){                 s[0]=resultSet.getInt(1);             }             if(s[0]%count==0)                 s[1]=s[0]/count;             else s[1]=s[0]/count+1;         catch (Exception e) {             e.printStackTrace();         }         return s;     }     public int[] allchaxunorgan(int count,String name){         String sql="select count(*) from policy where organ like ?";         int[] s=new int[2];         try{             Connection connection=DButil.getConn();             PreparedStatement statement=connection.prepareStatement(sql);             statement.setString(1,"%"+name+"%");             ResultSet resultSet= statement.executeQuery();             while(resultSet.next()){                 s[0]=resultSet.getInt(1);             }             if(s[0]%count==0)                 s[1]=s[0]/count;             else s[1]=s[0]/count+1;         catch (Exception e) {             e.printStackTrace();         }         return s;     }     public policy getdetail(int id){         policy p=new policy();         try{             Connection connection= DButil.getConn();             String sql="select * from policy where id=?";             PreparedStatement preparedStatement=connection.prepareStatement(sql);             preparedStatement.setInt(1,id);             ResultSet resultSet=preparedStatement.executeQuery();             while(resultSet.next()){                 p.setId(resultSet.getInt("id"));                 p.setName(resultSet.getString("name"));                 p.setType(resultSet.getString("type"));                 p.setCategory(resultSet.getString("category"));                 p.setRange(resultSet.getString("range"));                 p.setDocument(resultSet.getString("document"));                 p.setForm(resultSet.getString("form"));                 p.setOrgan(resultSet.getString("organ"));                 p.setViadata(resultSet.getString("viadata"));                 p.setPubdata(resultSet.getString("pubdata"));                 p.setPerdata(resultSet.getString("perdata"));                 p.setText(resultSet.getString("text"));             }         }catch (Exception e){             e.printStackTrace();         }         return p;     } }

  //Servlet

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 package service;   import bean.policy; import dao.Dao;   import javax.servlet.*; import javax.servlet.http.*; import javax.servlet.annotation.*; import java.io.IOException; import java.util.ArrayList; import java.util.List;   public class Servlet extends HttpServlet {     Dao dao=new Dao();       public void service(HttpServletRequest request,HttpServletResponse response) throws IOException, ServletException {         request.setCharacterEncoding("UTF-8");         String message=request.getParameter("method");         if(message.equals("all")){             all(request,response);         }         else if(message.equals("chakan")){             chakan(request,response);         }         else if(message.equals("suoyou")){             suoyou(request,response);         }         else if(message.equals("chadata")){             chadata(request,response);         }     }     public void suoyou(HttpServletRequest request,HttpServletResponse response) throws IOException, ServletException{         request.setCharacterEncoding("UTF-8");         response.setCharacterEncoding("UTF-8");         int cpage=1//当前页数         int count=10//每页显示数         String cp=request.getParameter("cp");         if(cp!=null){             cpage=Integer.parseInt(cp);         }         int arr[]=dao.alltext(count);         ArrayList<policy> policies=new ArrayList<>();         policies=dao.chaxuntext(cpage,count);         request.setAttribute("policies",policies);         request.setAttribute("cpage",cpage);         request.setAttribute("sum",arr[0]);         request.setAttribute("tpage",arr[1]);         request.setAttribute("dd","d");         request.getRequestDispatcher("index.jsp").forward(request,response);     }     public void chadata(HttpServletRequest request,HttpServletResponse response) throws IOException, ServletException{         request.setCharacterEncoding("UTF-8");         response.setCharacterEncoding("UTF-8");         int cpage=1//当前页数         int count=10//每页显示数         String cp=request.getParameter("cp");         if(cp!=null){             cpage=Integer.parseInt(cp);         }         int[]s = new int[2];         int zero=0;         ArrayList<policy> policies=new ArrayList<>();         String name=request.getParameter("name");         String document=request.getParameter("document");         String organ=request.getParameter("organ");         if(name!=null&&!name.equals("")&&document!=null&&!document.equals("")&&organ!=null&&!organ.equals("")){             policies=dao.chaxun3(cpage,count,name,document,organ);         }         else if(name!=null&&!name.equals("")&&document!=null&&!document.equals("")){             policies=dao.chaxunnameanddocument(cpage,count,name,document);         }         else if(name!=null&&!name.equals("")&&organ!=null&&!organ.equals("")){             policies=dao.chaxunnameandorgan(cpage,count,name,organ);         }         else if(document!=null&&!document.equals("")&&organ!=null&&!organ.equals("")){             policies=dao.chaxundocumentandorgan(cpage,count,organ,document);         }         else if(name!=null&&!name.equals("")){             policies=dao.chaxunname(cpage,count,name);             s=dao.allchaxunname(count,name);         }         else if(document!=null&&!document.equals("")){             policies=dao.chaxundocument(cpage,count,document);             s=dao.allchaxundo(count,document);         }         else if(organ!=null&&!organ.equals("")){             policies=dao.chaxunorgan(cpage,count,organ);             s=dao.allchaxunorgan(count,organ);         }         else{             request.setAttribute("message","未查询到相关信息");             request.setAttribute("policies",null);             request.setAttribute("cpage",zero);             request.setAttribute("sum",zero);             request.setAttribute("tpage",zero);               request.getRequestDispatcher("index.jsp").forward(request,response);             return;         }         if(policies.size()>0)         request.setAttribute("policies",policies);         else {             request.setAttribute("message","未查询到相关信息");             request.setAttribute("policies",null);             request.setAttribute("cpage",0);             request.setAttribute("sum",policies.size());             request.setAttribute("tpage",policies.size()%10==0?policies.size()/10:policies.size()/10+1);             request.getRequestDispatcher("index.jsp").forward(request,response);             return;         }         request.setAttribute("cpage",cpage);         request.setAttribute("sum",s[0]);         request.setAttribute("name",name);         request.setAttribute("organ",organ);         request.setAttribute("document",document);         request.setAttribute("tpage",s[1]);         request.setAttribute("dd","dd");         request.getRequestDispatcher("index.jsp").forward(request,response);     }     public void all(HttpServletRequest request,HttpServletResponse response) throws IOException, ServletException {         request.setCharacterEncoding("UTF-8");         response.setCharacterEncoding("UTF-8");         ArrayList<policy> policies=dao.getall();         request.setAttribute("policies",policies);         request.getRequestDispatcher("index.jsp").forward(request,response);     }     public void chakan(HttpServletRequest request,HttpServletResponse response) throws IOException, ServletException {         request.setCharacterEncoding("UTF-8");         response.setCharacterEncoding("UTF-8");         String id0=request.getParameter("id");         int id=Integer.parseInt(id0);         policy p=dao.getdetail(id);         request.setAttribute("policy",p);         request.getRequestDispatcher("detail.jsp").forward(request,response);     } }

  //DButil

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 package util;   import java.sql.*;   public class DButil {     public static Connection getConn() throws ClassNotFoundException {           Connection connection=null;         try {             Class.forName("com.mysql.cj.jdbc.Driver");             connection = DriverManager.getConnection("jdbc:mysql://localhost:3306/st""root""byc666");         }catch(Exception e){             e.printStackTrace();         }         return connection;     }     public static void closeall(Connection connection, PreparedStatement preparedStatement, ResultSet resultSet){         try{             if(resultSet!=null)                 resultSet.close();         catch (SQLException e) {             throw new RuntimeException(e);         }         try{             if(preparedStatement!=null)                 preparedStatement.close();         catch (SQLException e) {             throw new RuntimeException(e);         }         try{             if(connection!=null)                 connection.close();         catch (SQLException e) {             throw new RuntimeException(e);         }       } }

  //detail.jsp

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 <%--   Created by IntelliJ IDEA.   User: Lenovo   Date: 2023/4/10   Time: 15:43   To change this template use File | Settings | File Templates. --%> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head>     <title>Title</title>     <link href="table.css" rel="stylesheet"> </head> <body> <center>     <table class="tb" border="0">         <th>正文</th>         <tr>             <td>${policy.text}</td>         </tr>     </table> </center> </body> </html>

  //index.jsp

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <%@ page import="java.util.ArrayList" %> <%@ page import="bean.policy" %><%--   Created by IntelliJ IDEA.   User: Lenovo   Date: 2023/4/10   Time: 15:19   To change this template use File | Settings | File Templates. --%> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head>     <link href="table.css" rel="stylesheet">     <title>Title</title> </head> <body> <center> <img src="LOGO.png"> </center> <%     request.setCharacterEncoding("UTF-8");     response.setCharacterEncoding("UTF-8");     Object message=request.getAttribute("message");     if(message!=null)     {         %>     <script language="JavaScript">alert("<%=message%>")</script> <%     }     ArrayList<policy> policies= (ArrayList<policy>) request.getAttribute("policies");     if(policies==null){ %> <form action="Servlet?method=suoyou" method="post">     <input type="submit" value="查询"> </form> <%     }     else if(policies!=null){ %> <center>     <form action="Servlet?method=chadata" method="post">         政策名称:<input type="text" name="name" placeholder="请输入政策名称" style="border: none">         发文字号:<input type="text" name="document" placeholder="请输入发文字号" style="border: none">         发文机构:<input type="text" name="organ" placeholder="请输入发文机构" style="border: none">         全文检索:<input type="text" name="data" style="border: none">         <input type="submit" value="搜索">     </form>     <br>     <br> <table border="0" cellspacing="0">     <th width="10%">id</th><th width="20%">政策名称</th><th width="20%">发文机构</th><th width="20%">颁布日期</th><th width="20%">政策分类</th><th width="10%">操作</th>     <c:forEach items="${policies}" var="item">         <tr>             <td>${item.id}</td>             <td>${item.name}</td>             <td>${item.organ}</td>             <td>${item.pubdata}</td>             <td>${item.type}</td>             <td><a href="Servlet?method=chakan&id=${item.id}" style="text-decoration: none">查看</a> </td>         </tr>     </c:forEach> </table>     <br> 共${sum}条记录,当前第${cpage}/${tpage}页     <%         String dd= request.getAttribute("dd").toString();         if(Integer.parseInt(request.getAttribute("sum").toString())<10){         else if(dd.equals("d")){%>     <a href="Servlet?method=suoyou&cp=1">首页</a>     <a href="Servlet?method=suoyou&cp=${cpage-1<=0?1:cpage-1}">上一页</a>     <a href="Servlet?method=suoyou&cp=${cpage+1>=tpage?tpage:cpage+1}">下一页</a>     <a href="Servlet?method=suoyou&cp=${tpage}">尾页</a>     <%         }         else if(dd.equals("dd")){%>     <a href="Servlet?method=chadata&cp=1&name=<%=request.getAttribute("name")%>&document=<%=request.getAttribute("document")%>&organ=<%=request.getAttribute("organ")%>">首页</a>     <a href="Servlet?method=chadata&cp=${cpage-1<=0?1:cpage-1}&name=<%=request.getAttribute("name")%>&document=<%=request.getAttribute("document")%>&organ=<%=request.getAttribute("organ")%>">上一页</a>     <a href="Servlet?method=chadata&cp=${cpage+1>=tpage?tpage:cpage+1}&name=<%=request.getAttribute("name")%>&document=<%=request.getAttribute("document")%>&organ=<%=request.getAttribute("organ")%>">下一页</a>     <a href="Servlet?method=chadata&cp=${tpage}&name=<%=request.getAttribute("name")%>&document=<%=request.getAttribute("document")%>&organ=<%=request.getAttribute("organ")%>">尾页</a>     <%         }     %> </center> <%     } %> </body> </html>

  //table.css

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 * {     padding: 0;     margin: 0;     font-family: 'Open Sans Light';     letter-spacing: .05em;     margin: 0 auto;     text-align: center; } html {     height: 100%; } body {       height: 100%;     font: normal 20px auto “Trebuchet MS”, Verdana, Arial, Helvetica, sans-serif;       color: #4f6b72;       background: #E6EAE9;   }   a {         color: #c75f3e;   }   table {     width: 100%;       padding: 0;       margin: 0;   }   caption {         padding: 0 0 5px 0;       width: max-content;       font: italic 30px “Trebuchet MS”, Verdana, Arial, Helvetica, sans-serif;       text-align: right;   }   th {         font: bold 30px “Trebuchet MS”, Verdana, Arial, Helvetica, sans-serif;       color: #4f6b72;       border: 0;       letter-spacing: 2px;       text-transform: uppercase;       text-align: center;     height: 40px;       padding: 6px 6px 6px 12px;       background: #CAE8EA no-repeat;       background-size: cover;   }   th.nobg {         border-top: 0;       border-left: 0;       border: 0;       background: none;   }   td {       height: 30px;       border: 0;       background: #fff;       font-size:30px;       color: #4f6b72;   }     th.spec {         border-left: 1px solid #C1DAD7;       border-top: 0;       background: #fff no-repeat;       font: bold 10px “Trebuchet MS”, Verdana, Arial, Helvetica, sans-serif;   }   th.specalt {         border-left: 1px solid #C1DAD7;       border-top: 0;       background: #f5fafa no-repeat;       font: bold 10px “Trebuchet MS”, Verdana, Arial, Helvetica, sans-serif;       color: #797268;   }   td.alt {         background: #F5FAFA;       color: #797268;     }   /*———for IE 5.x bug*/   html>body td{ font-size:20px;}   body,td,th {         font-family: 宋体, Arial;       font-size: 15px;   }

标签:count,01,课堂练习,getString,request,resultSet,String,个人,name
From: https://www.cnblogs.com/Mini-Q/p/18257803

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