HttpUrlConnect ?post提交

package com.g3.hrp.data_api.Logic;import java.io.BufferedReader;import java.io.InputStream;import java.io.InputStreamReader;import java.io.OutputStream;import java.net.HttpURLConnection;import java.net.URL;public class HttpPostTest { ???public static void main(String[] args) { ???????// ???????new HttpPostTest().doJsonPost("http://www.aa.com", "{\"key\":\"value\"}"); ???} ???//发送JSON字符串 如果成功则返回成功标识。 ???public String doJsonPost(String urlPath, String Json) {// ???????System.out.println("Json ----- >>>>"+Json); ????????String result = ""; ???????HttpURLConnection conn = null; ???????InputStream is = null; ???????InputStreamReader r = ?null; ???????BufferedReader reader = null; ???????OutputStream outwritestream = null; ???????try { ???????????URL url = new URL(urlPath); ???????????conn = (HttpURLConnection) url.openConnection(); ???????????conn.setRequestMethod("POST"); ????????????conn.setConnectTimeout(30000); ???????????conn.setReadTimeout(300000); ????????????conn.setDoOutput(true);//向服务器写数据 ???????????conn.setDoInput(true);//读取数据 ???????????conn.setUseCaches(false); ???????????conn.setRequestProperty("Connection", "Keep-Alive"); ???????????conn.setRequestProperty("Charset", "UTF-8"); ???????????// 设置文件类型: ???????????conn.setRequestProperty("Content-Type","application/json; charset=UTF-8"); ???????????// 设置接收类型否则返回415错误 ???????????//conn.setRequestProperty("accept","*/*")此处为暴力方法设置接受所有类型，以此来防范返回415; ???????????conn.setRequestProperty("accept","application/json"); ???????????????????????// 往服务器里面发送数据 ???????????if (Json != null && Json.length()>0) { ???????????????byte[] writebytes = Json.getBytes(); ???????????????// 设置文件长度 ???????????????conn.setRequestProperty("Content-Length", String.valueOf(writebytes.length)); ???????????????outwritestream = conn.getOutputStream(); ???????????????outwritestream.write(Json.getBytes()); ???????????????outwritestream.flush(); ???????????????outwritestream.close(); ???????????} ???????????conn.connect(); ???????????if (conn.getResponseCode() == 200) { ???????????????is = conn.getInputStream(); ???????????????r = new InputStreamReader(is, "utf-8"); ???????????????reader = new BufferedReader(r);// ???????????????reader = new BufferedReader(new InputStreamReader(conn.getInputStream())); ???????????????result = reader.readLine(); ???????????????System.out.println(result); ????????????} ???????????System.out.println("conn.getResponseCode() ---->>>>"+conn.getResponseCode()); ????????????conn.disconnect(); ???????} catch (Exception e) { ???????????e.printStackTrace(); ???????} finally { ???????????if (reader != null) { ???????????????try { ???????????????????outwritestream.close(); ???????????????????is.close(); ???????????????????r.close(); ???????????????????reader.close(); ???????????????????conn.disconnect(); ???????????????} catch (Exception e) { ???????????????????e.printStackTrace(); ???????????????} ???????????} ???????} ???????return result; ???} ???}