Use HttpClient for remote interface test and httpclient Interface

Use HttpClient for remote interface test and httpclient Interface

During my work two days ago, the project leader gave me a remote interface and asked me to test it. Because it was an http protocol, I first thought of using the httpClient tool class for testing and checking it online, after finding a lot of sample code, I copied a demo and made some simple modifications. The connection times out in the test results, and it is hard to make a lot of demos, finally, we found that our company accesses the Internet through a proxy, so we need to configure the proxy during the test. Here is my test program.

Jar package used:

1 package com. lym. test; 2 3 import org. apache. http. httpEntity; 4 import org. apache. http. httpHost; 5 import org. apache. http. client. config. requestConfig; 6 import org. apache. http. client. methods. closeableHttpResponse; 7 import org. apache. http. client. methods. httpPost; 8 import org. apache. http. entity. stringEntity; 9 import org. apache. http. impl. client. closeableHttpClient; 10 import org. apache. http. impl. cl Ient. httpClientBuilder; 11 import org. apache. http. util. entityUtils; 12 13 import com. google. gson. jsonObject; 14 15 public class HttpClientTest {16 17 public static void main (String args []) throws Exception {18 19 // create HttpClientBuilder20 HttpClientBuilder httpClientBuilder = HttpClientBuilder. create (); 21 // HttpClient22 CloseableHttpClient closeableHttpClient = httpClientBuilder. build (); 23 // target requests in turn Address, port number, protocol type 24 HttpHost target = new HttpHost ("61.144.244.6: 8888/sztmerchant/merchant/addIsztMerchant.htm", 8888, "http"); 25 // proxy address, proxy port number, protocol type 26 HttpHost proxy = new HttpHost ("proxy3.bj. petrochina ", 8080," http "); 27 RequestConfig config = RequestConfig. custom (). setProxy (proxy ). build (); 28 29 // request address 30 HttpPost httpPost = new HttpPost ("http: // 61.144.244.6: 8888/sztmerchant/merchant/addIsztMerchant. Htm "); 31 // sets the header information 32 httpPost. addHeader ("Content-type", "application/json; charset = UTF-8"); 33 httpPost. setHeader ("Accept", "application/json"); 34 httpPost. setConfig (config); 35 36 // create parameter json string 37 JsonObject jsonObj = new JsonObject (); 38 jsonObj. addProperty ("merchantNo", "33300911238"); 39 jsonObj. addProperty ("merchantName", "e-commerce operation and production test 1238"); 40 String jsonStr = jsonObj. toString (); 41 System. out. println ("Parameters:" + jsonStr); 42 43 StringEntity entity; 44 try {45 entity = new StringEntity (jsonStr, "UTF-8"); 46 httpPost. setEntity (entity); 47 CloseableHttpResponse response = closeableHttpClient.exe cute (target, httpPost); 48 // getEntity () 49 HttpEntity httpEntity = response. getEntity (); 50 if (httpEntity! = Null) {51 // print the response content 52 System. out. println ("result:" + EntityUtils. toString (httpEntity, "UTF-8"); 53} else {54 System. out. println ("no response content"); 55} 56 // release resource 57 if (closeableHttpClient! = Null) {58 closeableHttpClient. close (); 59} 60} catch (Exception e) {61 e. printStackTrace (); 62} 63} 64 65}