java模拟http发送请求，第一种是HttpURLConnection发送post请求，第二种是使用httpclient模拟post请求，
实例代码：
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package test;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import java.util.Map.Entry;import java.util.concurrent.ExecutorService;import java.util.concurrent.Executors;import org.apache.http.HttpEntity;import org.apache.http.NameValuePair;import org.apache.http.client.config.RequestConfig;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.CloseableHttpResponse;import org.apache.http.client.methods.HttpPost;import org.apache.http.impl.client.CloseableHttpClient;import org.apache.http.impl.client.HttpClients;import org.apache.http.message.BasicNameValuePair;import org.apache.http.util.EntityUtils; * @author wdh * */public class ServiceThreadTest implements Runnable{ private String url; private Map<String,Object> paramStr; public ServiceThreadTest(String url, Map<String,Object> paramStr) { super(); this.url = url; this.paramStr = paramStr; } public String getUrl() { return url; } public void setUrl(String url) { this.url = url; } public Map<String,Object> getParamStr() { return paramStr; } public void setParamStr(Map<String,Object> paramStr) { this.paramStr = paramStr; } @Override public void run() { // http请求实现方式 CloseableHttpClient httpClient = HttpClients.createDefault(); HttpPost post = new HttpPost(url); RequestConfig config = RequestConfig.custom().setConnectionRequestTimeout(10000).setConnectTimeout(10000) .setSocketTimeout(10000).build(); CloseableHttpResponse response = null; try { List<NameValuePair> params = setHttpNameValues(paramStr); HttpEntity httpentity=new UrlEncodedFormEntity(params,"utf-8"); post.setEntity(httpentity); post.setConfig(config); response = httpClient.execute(post); HttpEntity entity = response.getEntity(); String content = EntityUtils.toString(entity); System.out.println("content:" + content); } catch (Exception e) { e.printStackTrace(); } } private List<NameValuePair> setHttpNameValues(Map<String,Object> paramMap) { List<NameValuePair> params = new ArrayList<NameValuePair>(); for (Entry<String, Object> entry:paramMap.entrySet()){ params.add(new BasicNameValuePair(entry.getKey(),entry.getValue().toString())); } return params; } public static void main(String[] args) { //运用java工具类中线程池 ExecutorService pool = Executors.newCachedThreadPool(); for (int i =0;i<2;i++) { //开启俩个线程 String url = "xxxx"; Map<String,Object> paramStr = getHttpParamStr(); pool.execute(new ServiceThreadTest(url,paramStr)); } } public static Map<String,Object> getHttpParamStr() { Map<String, Object> param = new HashMap<String, Object>(); param.put("apiversion", 1); param.put("appversion", "3.6.2"); return param; }} |
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原文链接：https://blog.csdn.net/net343/article/details/75460649
