1.HttpUtil -- 接口调用工具类
public class HttpUtil {
private static final int TIMEOUT_IN_MILLIONS = 30000;
private static final String CONN = "connection";
private static final String KA = "Keep-Alive";
public static String sendGet(String url) {
String result = "";
BufferedReader in = null;
try {
String urlNameString = url;
URL realUrl = new URL(urlNameString);
// 打开和URL之间的连接
HttpURLConnection connection = (HttpURLConnection) realUrl.openConnection();
// 设置通用的请求属性
connection.setRequestProperty(CONN, KA);
connection.setRequestProperty("user-agent",
"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
// 建立实际的连接
connection.setRequestMethod("GET");
connection.connect();
// 定义 BufferedReader输入流来读取URL的响应
in = new BufferedReader(new InputStreamReader(
connection.getInputStream()));
String line;
while ((line = in.readLine()) != null) {
result += line;
}
} catch (Exception e) {
System.out.println("发送GET请求出现异常！" + e);
}
// 使用finally块来关闭输入流
finally {
try {
if (in != null) {
in.close();
}
} catch (Exception e2) {
}
}
return result;
}
/**
* 向指定URL发送GET方法的请求
*
* @param url 发送请求的URL
* @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
* @return URL 所代表远程资源的响应结果
*/
public static String sendGet(String url, String param) {
String result = "";
BufferedReader in = null;
try {
String encoding = new String(Base64.encode(new String("jshxwlw" + ":" + "JSHXwlw_0616").getBytes()));
String urlNameString = url ;
URL realUrl = new URL(urlNameString);
// 打开和URL之间的连接
HttpURLConnection connection = (HttpURLConnection) realUrl.openConnection();
// 设置通用的请求属性
connection.setRequestProperty("Authorization", "Basic " + encoding);
connection.setRequestProperty(CONN, KA);
// 建立实际的连接
connection.setRequestMethod("GET");
connection.connect();
// 获取所有响应头字段
// 定义 BufferedReader输入流来读取URL的响应
in = new BufferedReader(new InputStreamReader(
connection.getInputStream()));
String line;
while ((line = in.readLine()) != null) {
result += line;
}
} catch (Exception e) {
System.out.println("发送GET请求出现异常！" + e);
}
// 使用finally块来关闭输入流
finally {
try {
if (in != null) {
in.close();
}
} catch (Exception e2) {
}
}
return result;
}
/**
* 向指定 URL 发送POST方法的请求
*
* @param url 发送请求的 URL
* @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
* @return 所代表远程资源的响应结果
*/
public static String sendPost(String url, String param) {
PrintWriter out = null;
BufferedReader in = null;
String result = "";
try {
URL realUrl = new URL(url);
// 打开和URL之间的连接
URLConnection conn = realUrl.openConnection();
// 设置通用的请求属性
conn.setRequestProperty("accept", "*/*");
conn.setRequestProperty(CONN, KA);
conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
// 发送POST请求必须设置如下两行
conn.setDoOutput(true);
conn.setDoInput(true);
//1.获取URLConnection对象对应的输出流
out = new PrintWriter(conn.getOutputStream());
//2.中文有乱码的需要将PrintWriter改为如下
// 发送请求参数
out.print(param);
// flush输出流的缓冲
out.flush();
// 定义BufferedReader输入流来读取URL的响应
in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String line;
while ((line = in.readLine()) != null) {
result += line;
}
} catch (Exception e) {
System.out.println("发送 POST 请求出现异常！" + e);
}
//使用finally块来关闭输出流、输入流
finally {
try {
if (out != null) {
out.close();
}
if (in != null) {
in.close();
}
} catch (IOException ex) {
}
}
System.out.println("post推送结果：" + result);
return result;
}
/**
* 向指定 URL 发送POST方法的请求
*
* @param url 发送请求的 URL
* @param param 请求参数，请求参数应该是 name1=value1&name2=value2 的形式。
* @return 所代表远程资源的响应结果
* @throws Exception
*/
public static String doPost(String url, String param) {
PrintWriter out = null;
BufferedReader in = null;
String result = "";
try {
URL realUrl = new URL(url);
HttpURLConnection conn = (HttpURLConnection) realUrl.openConnection();
// 设置通用的请求属性
conn.setRequestProperty("accept", "*/*");
conn.setRequestProperty(CONN, KA);
conn.setRequestMethod("POST");
conn.setRequestProperty("Content-Type",
"application/json");
conn.setRequestProperty("charset", "utf-8");
conn.setUseCaches(false);
// 发送POST请求必须设置如下两行
conn.setDoOutput(true);
conn.setDoInput(true);
conn.setReadTimeout(TIMEOUT_IN_MILLIONS);
conn.setConnectTimeout(TIMEOUT_IN_MILLIONS);
if (param != null && !param.trim().equals("")) {
// 获取URLConnection对象对应的输出流
out = new PrintWriter(conn.getOutputStream());
// 发送请求参数
out.print(param);
// flush输出流的缓冲
out.flush();
}
// 定义BufferedReader输入流来读取URL的响应
in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
String line;
while ((line = in.readLine()) != null) {
result += line;
}
} catch (Exception e) {
}
// 使用finally块来关闭输出流、输入流
finally {
try {
if (out != null) {
out.close();
}
if (in != null) {
in.close();
}
} catch (IOException ex) {
}
}
return result;
}
HttpUtil
2.获取token
public String getAccessToken() {
String access_token;
String accessUrl = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=" + APPID + "&secret=" + SECRET;
JSONObject accessJson = (JSONObject) JSONObject.parse(HttpUtil.sendGet(accessUrl));
access_token = accessJson.getString("access_token");
return access_token;
}
3.获取openid
private String getOpenid(@RequestParam("code") String code) {
StringBuffer sb = new StringBuffer();
sb.append(wechatUrl).append(APPID).append("&secret=").append(SECRET).append("&js_code=")
.append(code).append("&grant_type=authorization_code");
String url = sb.toString();
JSONObject jsonObject = (JSONObject) JSONObject.parse(HttpUtil.sendGet(url));
log.info("请求路径:{},appid:{},secret:{},返回信息:{}", url, APPID, SECRET, jsonObject);
String openid = jsonObject.getString("openid") ;
return openid;
}
4.获取手机号
public String getPhone(@RequestBody JSONObject jsonObject) {
String access_token = this.getAccessToken();
String url = "https://api.weixin.qq.com/wxa/business/getuserphonenumber?access_token=" + access_token;
Map<String, String> map = new HashMap<>();
map.put("code", jsonObject.getString("code"));
String param = JSONObject.toJSONString(map);
JSONObject data = (JSONObject) JSONObject.parse(HttpUtil.sendPost(url, param));
String phoneNumber = data.getJSONObject("phone_info").getString("phoneNumber");
return data;
}
标签：调用,String,URL,微信,接口,param,new,null,conn
From： https://www.cnblogs.com/shanghuliu/p/16664216.html