java获取access token_java获取微信accessToken的方法
package com.fengdi.lianmeng.task;
import com.fengdi.lianmeng.common.CacheHelper;
import com.fengdi.lianmeng.util.http.HttpRequest;
import com.fengdi.lianmeng.util.tencent.CloudSignHelper;
import com.fengdi.lianmeng.util.tencent.Interface;
import net.sf.json.JSONObject;
import org.quartz.JobExecutionContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
*/
public class GetWeiXinAccessTokenTask {
private static Logger logger = LoggerFactory.getLogger(GetWeiXinAccessTokenTask.class);
/**
*/
public void getWeiXinAccessToken (JobExecutionContext context){
try{
//封装请求数据
String params = "grant_type=client_credential" +
//发送GET请求
// 解析相应内容(转换成json对象)
JSONObject jsonObject = JSONObject.fromObject(result);
String accessToken = (String) jsonObject.get("access_token");
CacheHelper.put("wxAccessToken", accessToken);//将accessToken放入缓存，用的时候取就行
}catch(Exception ex){
}
}
}
GET请求
public static String sendGet(String url, String param) {
String result = "";
BufferedReader in = null;
try {
String urlNameString = url + "?" + param;
URL realUrl = new URL(urlNameString);
// 打开和URL之间的连接
URLConnection connection = realUrl.openConnection();
// 设置通用的请求属性
connection.setRequestProperty("accept", "*/*");
connection.setRequestProperty("connection", "Keep-Alive");
connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
// 建立实际的连接
connection.connect();
// 获取所有响应头字段
Map> map = connection.getHeaderFields();
// 遍历所有的响应头字段
for (String key : map.keySet()) {
System.out.println(key + "--->" + map.get(key));
}
// 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);
e.printStackTrace();
}
// 使用finally块来关闭输入流
finally {
try {
if (in != null) {
in.close();
}
} catch (Exception e2) {
e2.printStackTrace();
}
}
return result;
}
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。
package com.fengdi.lianmeng.task; import com.fengdi.lianmeng.common.CacheHelper; import com.fengdi.lianmeng.util.http.HttpRequest; import com.fengdi.lianmeng.util.tencent.CloudSignHelper; import com.fengdi.lianmeng.util.tencent.Interface; import net.sf.json.JSONObject; import org.quartz.JobExecutionContext; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** */ public class GetWeiXinAccessTokenTask { private static Logger logger = LoggerFactory.getLogger(GetWeiXinAccessTokenTask.class); /** */ public void getWeiXinAccessToken (JobExecutionContext context){ try{ //封装请求数据 String params = "grant_type=client_credential" + //发送GET请求 // 解析相应内容(转换成json对象) JSONObject jsonObject = JSONObject.fromObject(result); String accessToken = (String) jsonObject.get("access_token"); CacheHelper.put("wxAccessToken", accessToken);//将accessToken放入缓存，用的时候取就行 }catch(Exception ex){ } } } GET请求 public static String sendGet(String url, String param) { String result = ""; BufferedReader in = null; try { String urlNameString = url + "?" + param; URL realUrl = new URL(urlNameString); // 打开和URL之间的连接 URLConnection connection = realUrl.openConnection(); // 设置通用的请求属性 connection.setRequestProperty("accept", "*/*"); connection.setRequestProperty("connection", "Keep-Alive"); connection.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)"); // 建立实际的连接 connection.connect(); // 获取所有响应头字段 Map> map = connection.getHeaderFields(); // 遍历所有的响应头字段 for (String key : map.keySet()) { System.out.println(key + "--->" + map.get(key)); } // 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); e.printStackTrace(); } // 使用finally块来关闭输入流 finally { try { if (in != null) { in.close(); } } catch (Exception e2) { e2.printStackTrace(); } } return result; } 以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。