restful风格的http接口调用

接口调用"/>

restful风格的http接口调用

说明：

参数1：http请求的访问路径

参数2：请求方式 post get patch delete

参数3：请求内容，xml或json格式的报文，字符串都可以

附代码：

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.HttpURLConnection;
import java.URL;/**
 * restful接口调用工具
 */
public class RestfulUtil {/**
    * 连接hlfront
    * @param url：
    * @param param：请求方式
    * @param message：报文
    * @return
    */
   public static String dealCon(String url, String param, String message) throws IOException {param = param.toUpperCase();// POST DELETE PATCH GET
      StringBuffer result = new StringBuffer();//返回

      URL restServiceURL = new URL(url);HttpURLConnection httpConnection = (HttpURLConnection) restServiceURL.openConnection();httpConnection.setDoOutput(true);//允许输出
      httpConnection.setDoInput(true);//允许输入
      httpConnection.setUseCaches(false);//不用缓存
      httpConnection.setRequestMethod(param);httpConnection.setRequestProperty("Charset", "UTF-8");httpConnection.setRequestProperty("Accept", "application/json");
//       httpConnection.setRequestProperty("Content-Type", "multipart/form-data;boundary=" + UUID.randomUUID().toString());

      if("POST".equals(param)){//传递参数
//       String input = URLEncoder.encode(message, "UTF-8");
         String input = message;OutputStream outputStream = httpConnection.getOutputStream();outputStream.write(input.getBytes());outputStream.flush();}if (httpConnection.getResponseCode() != 200) {throw new RuntimeException("HTTP "+ param +" Request Failed with Error code : "
                     + httpConnection.getResponseCode());}BufferedReader responseBuffer = new BufferedReader(new InputStreamReader((httpConnection.getInputStream())));String output = "";while ((output = responseBuffer.readLine()) != null) {result.append(output);}httpConnection.disconnect();return result.toString();}}