HttpClient使用方法

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第一种：

public class HttpClientUtil {
   
   public static String sendAndRecv(String uri,String charset,String json){
      HttpClientParams clientParams = new HttpClientParams();
      clientParams.setSoTimeout(45000);
      clientParams.setContentCharset("utf-8");
      HttpClient  client = new HttpClient(clientParams);
      PostMethod method = new PostMethod(uri);
      try{
         method.setRequestEntity(new StringRequestEntity(json,"text/json",charset));
         int result = client.executeMethod(method);
         if(result == 200){
            InputStream is = method.getResponseBodyAsStream();
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            int   i=-1;
            while((i=is.read())!=-1){
               baos.write(i);
               //baos.flush();
            }
            String response =baos.toString(charset);
            return response;
         }else{
            System.out.println(result);
         }
      }catch (Exception e) {
         e.printStackTrace();
      }finally{
         method.releaseConnection();
      }

      return "-1";
   }
   
   public static void main(String[] args){
      JSONObject json = new JSONObject();       
      JSONObject reqstr = new JSONObject();  
      
//    reqstr.put("unitid", "1019");
//    reqstr.put("unitname", "钉钉部门新增同步实测");
//    reqstr.put("parentunitid", "0001");
//    reqstr.put("unitlevel", "2");
      reqstr.put("deptId", "1080");
      reqstr.put("deptName", "新增部门联通测试");
      reqstr.put("deptlevel", "2");
      reqstr.put("supDeptId", "1");
      reqstr.put("picName", "zhy");
      reqstr.put("contact","zhy");
      reqstr.put("deptDiscription","zaq");
      json.put("reqstr", reqstr);
      
      json.put("appid", "100000000001");       
      json.put("appseq", "4");
      json.put("txntype","2001");
      BangsunHttpClientUtil.sendAndRecv("http://ip地址加端口/dept/deptadd","UTF-8",json.toString());

   }

}

第二种：

public class BangsunUtiltest {
    public static String sendAndRecv(String uri,String charset,String json){

        CloseableHttpClient client = HttpClientBuilder.create().build();
        HttpPost method = new HttpPost(uri);
        StringEntity entity = new StringEntity(json,"UTF-8");
        method.setEntity(entity);
        method.setHeader("Content-Type","application/json;charset=utf8");
        CloseableHttpResponse response = null;
        try{
            response = client.execute(method);
            int result = response.getStatusLine().getStatusCode();
            HttpEntity httpEntity = response.getEntity();
            if(result == 200){
                System.out.println(EntityUtils.toString(httpEntity));
//                if(httpEntity != null){
//                    System.out.println("result: " + EntityUtils.toString(httpEntity, "UTF-8"));
//                }
                return null;
            }else if(result == 302){
                System.out.println(response.getFirstHeader("location"));
//                if(httpEntity != null){
//                    System.out.println("result: " + EntityUtils.toString(httpEntity, "UTF-8"));
//                }else{
//                    System.out.println("无返回内容!");
//                }
            }else{
                System.out.println(result);
            }
        }catch (Exception e) {
            e.printStackTrace();
        }finally{
            method.releaseConnection();
//            if(client != null){
//                try {
//                    client.close();
//                } catch (IOException e) {
//                    e.printStackTrace();
//                }
//            }
//
//            if(response != null){
//                try {
//                    response.close();
//                } catch (IOException e) {
//                    e.printStackTrace();
//                }
//            }
        }

        return "-1";
    }

    public static void main(String[] args){
        JSONObject json = new JSONObject();
        JSONObject reqstr = new JSONObject();
//
        reqstr.put("deptId", "1090");
        reqstr.put("deptName", "新增部门联通测试1");
        reqstr.put("deptlevel", "2");
        reqstr.put("superDeptId", "0");
        reqstr.put("picName", "zhy");
        reqstr.put("contact","zhy");
        reqstr.put("deptDiscription","zaqy");
        //json.put("reqstr", reqstr);
//
//


//        JSONObject json = new JSONObject();
//        JSONObject reqstr = new JSONObject();

//        reqstr.put("userId", "20226");
//        reqstr.put("realName", "江小鱼1");
//        reqstr.put("sex", "1");
//        reqstr.put("mobile", "201236541");
//        reqstr.put("usergrade","2");
//        reqstr.put("deptId","1");
//        reqstr.put("workstation","合肥");
//        reqstr.put("rntryDate","2018-11-15T01:27:23.621Z");
//        reqstr.put("userName","花撒1");
//        reqstr.put("title","sss");
//        reqstr.put("parauserid","10004");
//        reqstr.put("email","[email protected]");
//        reqstr.put("socAge","25");
//        reqstr.put("comAge","2");
//        reqstr.put("openid","25567");
//        reqstr.put("dtUserId","1");
//        reqstr.put("workStation","合肥");


        String jsonString = JSON.toJSONString(reqstr);
        System.out.println(jsonString);
        BangsunUtiltest.sendAndRecv("http://ip/dept/deptadd","UTF-8",jsonString);

    }
}