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javaWeb开发实战：spring MVC+MyBatis实现网页登录验证

时间：2024-11-12 11:45:06浏览次数：3  
标签：jdbc return javaWeb spring MVC import org public String

1.环境和工具

Idea 2019、Tomcat 8、Jdk 8

2.新建spring MVC项目

打开idea，新建项目，选择springMVC->next:填写项目名、路径->finish完成创建

3.项目属性配置

文件（file）->项目结构：检查sdk、模块设置是否正确。

4.运行调试配置

Add configration

点击“+”号，选择tomcat->local

sserver信息填写

Deploymet页选择对应模块，保存

5.引入MyBatis框架

右键项目名->添加框架支持->maven

在生成的pom.xml中添加需要的依赖设置。

此处给出我常用的依赖配置

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>

    <groupId>groupId</groupId>
    <artifactId>MySpMvcSqlsrv</artifactId>
    <version>1.0-SNAPSHOT</version>
    <!-- 打包的机制，如pom,jar, maven-plugin, ejb, war, ear, rar, par，默认为jar -->
    <packaging>jar</packaging>
    <!-- 定义本项目的依赖关系 -->
    <properties>
        <maven.compiler.source>1.8</maven.compiler.source>
        <maven.compiler.target>1.8</maven.compiler.target>
        <!-- mybatis版本号 -->
        <spring.version>4.0.9.RELEASE</spring.version>
        <!-- mybatis版本号 -->
        <mybatis.version>3.3.0</mybatis.version>
        <!-- log4j日志文件管理包版本 -->
        <!--        <slf4j.version>1.7.7</slf4j.version>-->
        <!--        <log4j.version>1.2.16</log4j.version>-->
        <cxf.version>3.3.0</cxf.version>
        <springfox.version>2.8.0</springfox.version>
        <jackson.version>2.10.0</jackson.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>com.microsoft.sqlserver</groupId>
            <artifactId>mssql-jdbc</artifactId>
            <version>6.4.0.jre8</version>
        </dependency>
        <dependency>
            <groupId>c3p0</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.1.2</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>${mybatis.version}</version>
        </dependency>
        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.2.3</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.13</version>
            <scope>compile</scope>
        </dependency>
        <dependency>
            <groupId>jstl</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
        <!--        json依赖-->
        <dependency>
            <groupId>net.sf.json-lib</groupId>
            <artifactId>json-lib</artifactId>
            <version>2.4</version>
            <classifier>jdk15</classifier>
        </dependency>
        <dependency>
            <groupId>org.codehaus.woodstox</groupId>
            <artifactId>woodstox-core-asl</artifactId>
            <version>4.4.1</version>
        </dependency>
        <dependency>
            <groupId>org.apache.cxf</groupId>
            <artifactId>cxf-rt-frontend-jaxws</artifactId>
            <version>${cxf.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.cxf</groupId>
            <artifactId>cxf-rt-transports-http</artifactId>
            <version>${cxf.version}</version>
        </dependency>
        <dependency>
            <groupId>org.apache.cxf</groupId>
            <artifactId>cxf-rt-transports-http-jetty</artifactId>
            <version>${cxf.version}</version>
        </dependency>
        <!--        jackson-->
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-core</artifactId>
            <version>${jackson.version}</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>${jackson.version}</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-annotations</artifactId>
            <version>${jackson.version}</version>
        </dependency>
        <!--        fileupload-->
        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
            <version>1.3.1</version>
        </dependency>
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.5</version>
        </dependency>
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpcore</artifactId>
            <version>4.4.4</version>
        </dependency>
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpmime</artifactId>
            <version>4.5</version>
        </dependency>
        <!--        下面五个依赖为ueditor的依赖-->
        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.4</version>
        </dependency>
        <dependency>
            <groupId>commons-codec</groupId>
            <artifactId>commons-codec</artifactId>
            <version>1.10</version>
        </dependency>
        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
            <version>1.3.1</version>
        </dependency>
        <dependency>
            <groupId>org.json</groupId>
            <artifactId>json</artifactId>
            <version>20180130</version>
        </dependency>
        <dependency>
            <groupId>cn.bestwu</groupId>
            <artifactId>ueditor</artifactId>
            <version>1.1.3.1</version>
        </dependency>
    </dependencies>
    
</project>

如需修改本地Maven仓库路径，可再项目设置里修改

点击Import change 至其依赖下载完成

还要做一个操作，就是把它同步到输出目录：项目结构->

6.数据库映射相关文件：dao、entity、service、mapper

USERSDAO.java

package com.My.dao;
import com.My.entity.USERS;
import org.apache.ibatis.annotations.Param;
import java.util.List;
public interface USERSDao {
    int add(USERS m);
    int delete(String v);
    USERS getMod(String v);
    int update(USERS m);
    USERS getModBySql(String sql);
    List<USERS> getListBySql(String sql);
    int getCountBySql(String sql);
}

USERS.java

package com.My.entity;
import org.springframework.format.annotation.DateTimeFormat;
import java.math.BigDecimal;
import java.util.Date;
public class USERS {
    private String ACCOUNT;
    public String getACCOUNT(){return this.ACCOUNT;}
    public void setACCOUNT(String ACCOUNT){this.ACCOUNT=ACCOUNT;}

    private String PASSWORD;
    public String getPASSWORD(){return this.PASSWORD;}
    public void setPASSWORD(String PASSWORD){this.PASSWORD=PASSWORD;}

    private String NAME;
    public String getNAME(){return this.NAME;}
    public void setNAME(String NAME){this.NAME=NAME;}

    private String TEL;
    public String getTEL(){return this.TEL;}
    public void setTEL(String TEL){this.TEL=TEL;}

    private String QQ;
    public String getQQ(){return this.QQ;}
    public void setQQ(String QQ){this.QQ=QQ;}

    private String EMAIL;
    public String getEMAIL(){return this.EMAIL;}
    public void setEMAIL(String EMAIL){this.EMAIL=EMAIL;}

    private String IDCARD;
    public String getIDCARD(){return this.IDCARD;}
    public void setIDCARD(String IDCARD){this.IDCARD=IDCARD;}

    private int STUT;
    public int getSTUT(){return this.STUT;}
    public void setSTUT(int STUT){this.STUT=STUT;}

    @DateTimeFormat(pattern = "yyyy-MM-dd HH:mm:ss")
    private Date ADDTIME;
    public Date getADDTIME(){return this.ADDTIME;}
    public void setADDTIME(Date ADDTIME){this.ADDTIME=ADDTIME;}

    private BigDecimal MONEY;
    public BigDecimal getMONEY(){return this.MONEY;}
    public void setMONEY(BigDecimal MONEY){this.MONEY=MONEY;}

    private String PHOTOPATH;
    public String getPHOTOPATH(){return this.PHOTOPATH;}
    public void setPHOTOPATH(String PHOTOPATH){this.PHOTOPATH=PHOTOPATH;}

    private String ID;
    public String getID(){return this.ID;}
    public void setID(String ID){this.ID=ID;}

    private String TIP;
    public String getTIP(){return this.TIP;}
    public void setTIP(String TIP){this.TIP=TIP;}

    private String DEPARTID;
    public String getDEPARTID(){return this.DEPARTID;}
    public void setDEPARTID(String DEPARTID){this.DEPARTID=DEPARTID;}

    public USERS (){}
}

BASESRV.java

package com.My.service;
import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration({  "classpath:spring/spring-mybatis.xml"})
public class BaseSrv {
}


USERrV.java

package com.My.service;
import com.My.dao.USERSDao;
import com.My.entity.USERS;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import java.util.List;
@Service
public class USERSSrv  extends BaseSrv {
    @Autowired
    private USERSDao usersDao;
    public int add(USERS m){return usersDao.add(m);}
    public int delete(String v){return usersDao.delete(v);}
    public USERS getMod(String v){return usersDao.getMod(v);}
    public int update(USERS m){return usersDao.update(m);}
    public USERS getModBySql(String sql){return usersDao.getModBySql(sql);}
    public List<USERS> getListBySql(String sql){return usersDao.getListBySql(sql);}
    public int getCountBySql(String sql){return usersDao.getCountBySql(sql);}
    public List<USERS> getListBySqlPage(String sql,int page,int pageSize){
        List<USERS> r=usersDao.getListBySql(sql);
        int pged = page*pageSize;
        if(pged>r.size()){pged = r.size();}
        return r.subList((page-1)*pageSize,pged);
    }
}

USERSDAO.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.My.dao.USERSDao">
    <insert id="add" parameterType="com.My.entity.USERS">
        insert into USERS(ACCOUNT,PASSWORD,NAME,SEX,TEL,QQ,EMAIL,IDCARD,STUT,ADDTIME,MONEY,PHOTOPATH,ID,TIP,DEPARTID) values(#{ACCOUNT},#{PASSWORD},#{NAME},#{SEX},#{TEL},#{QQ},#{EMAIL},#{IDCARD},#{STUT},#{ADDTIME},#{MONEY},#{PHOTOPATH},#{ID},#{TIP},#{DEPARTID})
    </insert>
    <delete id="delete" parameterType="String">
        delete FROM USERS WHERE ID = #{ID}
    </delete>
    <select id="getMod" resultType="com.My.entity.USERS" parameterType="String">
        SELECT * FROM USERS WHERE ID = #{ID}
    </select>
<update id="update" parameterType="com.My.entity.USERS">
        update USERS set ACCOUNT=#{ACCOUNT},PASSWORD=#{PASSWORD},NAME=#{NAME},SEX=#{SEX},TEL=#{TEL},QQ=#{QQ},EMAIL=#{EMAIL},IDCARD=#{IDCARD},STUT=#{STUT},ADDTIME=#{ADDTIME},MONEY=#{MONEY},PHOTOPATH=#{PHOTOPATH},TIP=#{TIP},DEPARTID=#{DEPARTID} WHERE ID = #{ID}
    </update>
    <select id="getModBySql" resultType="com.My.entity.USERS" parameterType="String">
        ${_parameter}
    </select>
    <select id="getListBySql" resultType="com.My.entity.USERS" parameterType="String">
        ${_parameter}
    </select>
    <select id="getCountBySql" resultType="int" parameterType="String">
        ${_parameter}
    </select>
</mapper>

7.框架用到的配置文件

Spring-cxf.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:jaxws="http://cxf.apache.org/jaxws"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
       http://cxf.apache.org/jaxws http://cxf.apache.org/schemas/jaxws.xsd">

<import resource="classpath:META-INF/cxf/cxf.xml"/>
    <import resource="classpath:META-INF/cxf/cxf-servlet.xml"/>

<!--            <jaxws:endpoint-->
<!--                id="reportEntity"-->
<!--                implementor="com.My.serviceWebService.MyWebService"-->
<!--                address="/MyServiceService"></jaxws:endpoint>-->

</beans>

Spring-mvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/context
       https://www.springframework.org/schema/context/spring-context.xsd
       http://www.springframework.org/schema/mvc
       http://www.springframework.org/schema/mvc/spring-mvc.xsd">
    <!--避免IE执行AJAX时，返回JSON出现下载文件 -->
    <bean id="mappingJacksonHttpMessageConverter"
          class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
        <property name="supportedMediaTypes">
            <list>
                <value>text/html;charset=UTF-8</value>
            </list>
        </property>
    </bean>
    <!--控制器路径-->
    <context:component-scan base-package="com.My.Control"/>
    <!--配置器处理器映射器，配置处理器适配器-->
    <mvc:annotation-driven/>
<!--    放行所有的静态资源文件-->
    <mvc:default-servlet-handler/>
    <!-- 静态资源文件-->
<!--    <mvc:resources mapping="/css/**" location="/css/" cache-period="31556926"/>-->
<!--    <mvc:resources mapping="/img/**" location="/img/" cache-period="31556926"/>-->
<!--    <mvc:resources mapping="/js/**" location="/js/" cache-period="31556926"/>-->
<!--    <mvc:resources mapping="/photos/**" location="/photos/" cache-period="31556926"/>-->
<!--    <mvc:resources mapping="/upload/**" location="/upload/" cache-period="31556926"/>-->
    <!--指定视图解析器-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <!-- 视图的路径 -->
        <property name="prefix" value="/WEB-INF/jsp/"/>
        <!-- 视图名称后缀  -->
        <property name="suffix" value=".jsp"/>
    </bean>
    <!--配置拦截器-->
    <mvc:interceptors>
        <!--登录拦截器-->
        <mvc:interceptor>
            <mvc:mapping path="/**"/>
            <bean class="com.My.aInterceptor.LoginInterceptor"/>
        </mvc:interceptor>
    </mvc:interceptors>
    <!-- 配置文件上传，如果没有使用文件上传可以不用配置，当然如果不配，那么配置文件中也不必引入上传组件包 -->
    <bean id="multipartResolver"
          class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
        <!-- 默认编码 -->
        <property name="defaultEncoding" value="UTF-8" />
        <!-- 文件大小最大值 -->
        <property name="maxUploadSize" value="10485760000" />
        <!-- 内存中的最大值 -->
        <property name="maxInMemorySize" value="40960" />
    </bean>
</beans>

Spring-mabatis.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
	http://www.springframework.org/schema/beans/spring-beans.xsd
	http://www.springframework.org/schema/context
	http://www.springframework.org/schema/context/spring-context.xsd
	http://www.springframework.org/schema/tx
	http://www.springframework.org/schema/tx/spring-tx.xsd">
    <!-- 扫描包下所有使用注解的类型 -->
    <context:component-scan base-package="com.My" />
    <!-- 引入配置文件 -->
    <context:property-placeholder location="classpath:jdbc.properties"/>
    <!-- 2.数据库连接池 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <!-- 配置连接池属性 -->
        <property name="driverClass" value="${jdbc.driver}"/>
        <property name="jdbcUrl" value="${jdbc.url}"/>
        <property name="user" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
        <!-- c3p0连接池的私有属性 -->
        <property name="maxIdleTime" value="900"></property>
        <property name="maxPoolSize" value="30"/>
        <property name="minPoolSize" value="10"/>
        <!-- 关闭连接后不自动commit -->
        <property name="autoCommitOnClose" value="false"/>
        <!-- 获取连接超时时间 -->
        <property name="checkoutTimeout" value="30000"/>
        <!-- 当获取连接失败重试次数 -->
        <property name="acquireRetryAttempts" value="2"/>
    </bean>
    <!-- 3.配置SqlSessionFactory对象 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <!-- 注入数据库连接池 -->
        <property name="dataSource" ref="dataSource"/>
        <!-- 配置MyBaties全局配置文件:mybatis-config.xml -->
        <property name="configLocation" value="classpath:mybatis-config.xml"/>
        <!-- 扫描entity包 使用别名 -->
        <property name="typeAliasesPackage" value="com.My.entity"/>
        <!-- 扫描sql配置文件:mapper需要的xml文件 -->
<!--        <property name="mapperLocations" value="classpath:mapper/*.xml"/>-->
        <!--        <property name="mapperLocations" value="classpath:mapperOrcl/*.xml" />-->
                <property name="mapperLocations" value="classpath:mapper/*.xml" />
    </bean>
    <!-- 4.配置扫描Dao接口包，动态实现Dao接口，注入到spring容器中 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <!-- 注入sqlSessionFactory -->
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
        <!-- 给出需要扫描Dao接口包 -->
        <property name="basePackage" value="com.My.dao"/>
    </bean>
    <!-- 配置事务管理器 -->
    <bean id="transactionManager"
          class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!-- 注入数据库连接池 -->
        <property name="dataSource" ref="dataSource" />
    </bean>
    <!-- 配置基于注解的声明式事务 -->
<!--    <tx:annotation-driven transaction-manager="transactionManager" />-->
</beans>

Jdbc.properties

#--mysql
#jdbc.driver=com.mysql.jdbc.Driver
#jdbc.url=jdbc:mysql://49.235.49.55:3306/liu?useUnicode=true&characterEncoding=utf8&serverTimezone=UTC
#jdbc.username=root
#jdbc.password=ylkj.123
#jdbc.driverLocation=D:/IDEA_2019/Maven_storage/repository/mysql/mysql-connector-java/8.0.18/mysql-connector-java-8.0.18.jar
#--oracle
#jdbc.driver=oracle.jdbc.OracleDriver
#jdbc.url=jdbc:oracle:thin:@localhost:1521:orclx
#jdbc.username=liu
#jdbc.password=liu123
#jdbc.driverLocation=D:/IDEA_2019/Maven_storage/repository/oracle/ojdbc/14/ojdbc-14.jar
#--sqlServer
jdbc.driver=com.microsoft.sqlserver.jdbc.SQLServerDriver
jdbc.url=jdbc:sqlserver://localhost:1433; DatabaseName=YLAdm
jdbc.username=sa
jdbc.password=123
#jdbc.driverLocation=D:/IDEA_2019/Maven_storage/repository/com/microsoft/sqlserver/mssql-jdbc/6.4.0.jre8/mssql-jdbc-6.4.0.jre8.jar

Logback.xml

<?xml version="1.0" encoding="UTF-8"?>
<configuration debug="true">
    <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
        <!-- encoders are by default assigned the type ch.qos.logback.classic.encoder.PatternLayoutEncoder -->
        <encoder>
            <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
        </encoder>
    </appender>

    <root level="debug">
        <appender-ref ref="STDOUT" />
    </root>
</configuration>

Mybatis-config.xml

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
        PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
    <!-- 配置全局属性 -->
    <settings>
        <!-- 使用jdbc的getGeneratedKeys获取数据库自增主键值 -->
        <setting name="useGeneratedKeys" value="true" />
        <!-- 使用列别名替换列名 默认:true -->
        <setting name="useColumnLabel" value="true" />
        <!-- 开启驼峰命名转换:Table{create_time} -> Entity{createTime} -->
        <setting name="mapUnderscoreToCamelCase" value="true" />
    </settings>
</configuration>

8.Control类

Index.java

package com.My.Control;

import com.My.aHellper.MyBasePage;
import com.My.entity.USERS;
import com.My.service.USERSSrv;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;

@Controller
@RequestMapping("/")
public class Index {
    @Resource
    private USERSSrv usersrv;
    @RequestMapping("/")
    public ModelAndView index(HttpServletRequest request) {
        USERS lu = new MyBasePage().getAdminfo(request,usersrv);
        String sql="";
        ModelAndView mav = new ModelAndView();
        mav.setViewName("index");//跳转新的页面名称
        mav.addObject("lu",lu);
        return mav;
    }
}

9.Jsp页面

index.jsp


<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>首页</title>
    <link rel="stylesheet" href="${pageContext.request.contextPath}/css/my.css?a=1" type="text/css">
    <script src="${pageContext.request.contextPath}/js/jquery-1.11.2.min.js"></script>
    <script src="${pageContext.request.contextPath}/js/my.js?a=4" type="text/javascript" language="JavaScript" charset="UTF-8"></script>
    <script>

    </script>
</head>
<body style="padding: 10px;">
<div style="width: 100%;text-align: center;font-size: 28px;color: #666;margin: 20px 0;">欢迎光临。</div>
<table class="myTb" frame="none" rules="none" style="width: 100%;border-spacing: 0;border-bottom: solid 2px #666;">

    <tr>
        <th><a href="${pageContext.request.contextPath}/loginOut">退出</a></th>
    </tr>
</table>
</body>
</html>

login.jsp


<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>登录</title>
    <script src="/js/jquery-1.11.2.min.js"></script>
    <script>
        $(function () {
            //回车事件
            document.onkeydown = function(e){
                var ev = document.all ? window.event : e;
                if (ev.keyCode == 13) {
                    $("#Btn_login").click();
                }
            }
        });
    </script>
</head>
<body style="background:#aaaaff;">

<form action="${pageContext.request.contextPath}/login" method="post">
    <table frame="none" rules="none"
           style="border-spacing: 0;width: 300px;border: solid 1px #ddd;margin: auto;margin-top:100px;">
        <tr style="height: 40px;">
            <td align="right" width="100px">用户名：</td>
            <td><input type="text" value="admin" autocomplete="off" name="username" style="padding: 4px;"></td>
        </tr>
        <tr style="height: 40px;">
            <td align="right">密码：</td>
            <td><input type="password" value="123456" name="password" style="padding: 4px;"></td>
        </tr>
        <tr style="height: 40px;">
            <td align="right"></td>
            <td><input id="Btn_login" type="submit" value="登录" style="padding: 4px;">&nbsp;${msg}</td>
        </tr>
    </table>
</form>
</body>
</html>

10.web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
         http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
         version="4.0">
    <display-name>人在塔在</display-name>
    <!-- Spring和mybatis的配置文件 -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>
            classpath:spring/spring-mybatis.xml
            classpath:spring/spring-cxf.xml
        </param-value>
    </context-param>
    <!-- 编码过滤器 -->
    <filter>
        <filter-name>encodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <async-supported>true</async-supported>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
        <init-param>
            <param-name>forceEncoding</param-name>
            <param-value>true</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <!-- Spring监听器 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <!-- 防止Spring内存溢出监听器 -->
    <listener>
        <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
    </listener>
    <!-- CXF servlet -->
    <servlet>
        <servlet-name>CXFServlet</servlet-name>
        <servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>CXFServlet</servlet-name>
        <url-pattern>/webservices/*</url-pattern>
    </servlet-mapping>
    <!-- Spring MVC servlet -->
    <servlet>
        <servlet-name>SpringMVC</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <!--需要加载的配置文件-->
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring/spring-mvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
        <async-supported>true</async-supported>
    </servlet>
    <servlet-mapping>
        <servlet-name>SpringMVC</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
    <!--    静态资源格式-->
    <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>*.css</url-pattern>
    </servlet-mapping>
    <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>*.js</url-pattern>
    </servlet-mapping>
    <!--欢迎页-->
    <welcome-file-list>
        <welcome-file>/</welcome-file>
    </welcome-file-list>
</web-app>

11.运行调试

标签：jdbc,return,javaWeb,spring,MVC,import,org,public,String
From： https://blog.csdn.net/cooluca/article/details/143707002

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