微信获取AccessToken
/**
* @author ChenXb
*
* 2018年4月18日
*/
public class AccessToken {
private String access_token;
private int expires_in;
public String getAccess_token() {
return access_token;
}
public void setAccess_token(String access_token) {
this.access_token = access_token;
}
public int getExpires_in() {
return expires_in;
}
public void setExpires_in(int expires_in) {
this.expires_in = expires_in;
}
@Override
public String toString() {
return "AccessToken [access_token=" + access_token + ", expires_in=" + expires_in + "]";
}
}
package com.cxb.otherWx;
import java.net.MalformedURLException;
import java.net.URL;
import com.cxb.wx.accesstoken.AccessToken;
import com.cxb.wx.accesstoken.Account;
import com.google.gson.Gson;
/**
* @author ChenXb
*
* 2018年4月19日 获取accesstoken的工具类
*/
public class AccessTokenUtils {
public static String url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=APPID&secret=APPSECRET";
public static String getAccessToken(String APPID, String APPSECRET) {
url = url.replaceAll("APPID", APPID).replaceAll("APPSECRET", APPSECRET);
URL Url = null;
try {
Url = new URL(url);
} catch (MalformedURLException e) {
e.printStackTrace();
}
String json = HttpUtils.get(Url);
Gson gson = new Gson();
AccessToken accessToken = gson.fromJson(json, AccessToken.class);
String access_token = accessToken.getAccess_token();
return access_token;
}
public static void main(String[] args) {
String accessToken = getAccessToken(Account.APPID, Account.APPSECRET); //将这里的数值换成你自己的System.out.println(accessToken);
}
}
//这里是https的工具类
package com.cxb.otherWx;
import org.apache.commons.httpclient.*;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.methods.PostMethod;
import org.apache.commons.httpclient.methods.RequestEntity;
import org.apache.commons.httpclient.methods.StringRequestEntity;
import org.apache.commons.httpclient.params.HttpConnectionManagerParams;
import org.apache.commons.lang.StringUtils;
import org.apache.log4j.Logger;
import java.io.IOException;
import java.net.URL;
/**
*
* @author ChenXb
* 这是http的get 和 post 请求
* 2018年4月19日
*/
public class HttpUtils{
private static final Logger logger = Logger.getLogger(HttpUtils.class);
private final static String OPERATER_NAME = "【HTTP操作】";
private final static int SUCCESS = 200;
private final static String UTF8 = "UTF-8";
private HttpClient client;
private static HttpUtils instance = new HttpUtils();
/**
* 私有化构造器
*/
private HttpUtils() {
HttpConnectionManager httpConnectionManager = new MultiThreadedHttpConnectionManager();
HttpConnectionManagerParams params = httpConnectionManager.getParams();
params.setConnectionTimeout(5000);
params.setSoTimeout(20000);
params.setDefaultMaxConnectionsPerHost(1000);
params.setMaxTotalConnections(1000);
client = new HttpClient(httpConnectionManager);
client.getParams().setContentCharset(UTF8);
client.getParams().setHttpElementCharset(UTF8);
}
/**
* get请求
*/
public static String get(URL url) {
return instance.doGet(url);
}
private String doGet(URL url) {
long beginTime = System.currentTimeMillis();
String respStr = StringUtils.EMPTY;
try {
logger.info(OPERATER_NAME + "开始get通信，目标host:" + url);
HttpMethod method = new GetMethod(url.toString());
// 中文转码
method.getParams().setContentCharset(UTF8);
try {
client.executeMethod(method);
} catch (HttpException e) {
logger.error(new StringBuffer("发送HTTP GET给\r\n").append(url)
.append("\r\nHTTP异常\r\n"), e);
} catch (IOException e) {
logger.error(new StringBuffer("发送HTTP GET给\r\n").append(url)
.append("\r\nIO异常\r\n"), e);
}
if (method.getStatusCode() == SUCCESS) {
respStr = method.getResponseBodyAsString();
}
// 释放连接
method.releaseConnection();
logger.info(OPERATER_NAME + "通讯完成，返回码：" + method.getStatusCode());
logger.info(OPERATER_NAME + "返回内容：" + method.getResponseBodyAsString());
logger.info(OPERATER_NAME + "结束..返回结果:" + respStr);
} catch (Exception e) {
logger.info(OPERATER_NAME, e);
}
long endTime = System.currentTimeMillis();
logger.info(OPERATER_NAME + "共计耗时:" + (endTime - beginTime) + "ms");
return respStr;
}
/**
* POST请求
*/
public static String post(URL url, String content) {
return instance.doPost(url, content);
}
private String doPost(URL url, String content) {
long beginTime = System.currentTimeMillis();
String respStr = StringUtils.EMPTY;
try {
logger.info(OPERATER_NAME + "开始post通信，目标host:" + url.toString());
logger.info("通信内容:" + content);
PostMethod post = new PostMethod(url.toString());
RequestEntity requestEntity = new StringRequestEntity(content, "application/json;charse=UTF-8", UTF8);
post.setRequestEntity(requestEntity);
// 设置格式
post.getParams().setContentCharset(UTF8);
client.executeMethod(post);
if (post.getStatusCode() == SUCCESS) {
respStr = post.getResponseBodyAsString();
}
logger.info(OPERATER_NAME + "通讯完成，返回码：" + post.getStatusCode());
logger.info(OPERATER_NAME + "返回内容：" + post.getResponseBodyAsString());
logger.info(OPERATER_NAME + "结束..返回结果:" + respStr);
post.releaseConnection();
} catch (Exception e) {
logger.error(OPERATER_NAME, e);
}
long endTime = System.currentTimeMillis();
logger.info(OPERATER_NAME + "共计耗时:" + (endTime - beginTime) + "ms");
return respStr;
}
//测试类
public static void main(String[] args) throws Exception {
/* JSONObject json = new JSONObject();
json.put("funCode", "3001");
json.put("platCode", "3001");
URL url = new URL("http://127.0.0.1:9191/member");
String resp = HttpUtil.post(url, json.toString());
System.out.println(resp);*/
URL url = new URL("http://www.baidu.com");
String string = HttpUtils.get(url);
System.out.println(string);
}
}
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