java用httpclient 执行到httpclient.execute(request); 这句代码假死不往下执行不报错

Posted 2023-04-15

之前看到你提到问题，我也遇到这个问题了，请问你是怎么解决的，方便告诉我吗？谢谢

参考技术A 这不一定是httpclient的问题。也很有可能是因为服务器没有响应造成的。
可以通过调整超时时间解决。 参考技术B 1.关闭流httpClient.execute(httpGet).getEntity().getContent().close()
2.设置连接超时
SocketConfig socketConfig = SocketConfig.custom()
//开启监视TCP连接是否有效
.setSoKeepAlive(false)
//是否可以在一个进程关闭Socket后，即使它还没有释放端口，其它进程还可以立即重用端口
.setSoReuseAddress(true)
//接受数据的等待超时时间，单位ms
.setSoTimeout(70000)
//是否立即发送数据，设置为true会关闭Socket缓冲，默认为false
.setTcpNoDelay(true).build();
HttpClientBuilder httpClientBuilder = HttpClients.custom().setDefaultSocketConfig(socketConfig);
httpClient = httpClientBuilder.build();

httpClient 配置与测试

1:pom.xml 输入依赖jar坐标

 <!-- https://mvnrepository.com/artifact/org.apache.httpcomponents/httpclient -->
    <dependency>
      <groupId>org.apache.httpcomponents</groupId>
      <artifactId>httpclient</artifactId>
      <version>4.5.6</version>
    </dependency>
  </dependencies>

 

 

2:测试配置成功源码

package com.ibaiqi.gather.httpClientStudy;

import org.apache.http.HttpEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import sun.net.www.http.HttpClient;

import java.io.IOException;

/**
 * @version 1.0.0
 * @program: recuit_gather
 * @description:
 * @author: zhangdaxu
 * @create: 2020-03-13 10:47
 */
public class httpClientStu01 {
    public static void main(String[] args) throws IOException {
        System.out.println("测试httpClient配置");
        //1：创建httpClient对象
        CloseableHttpClient httpClient = HttpClients.createDefault();
        //2：通过httpGet发起get方式，传入网址为参数，并创建httpGet对象。
        HttpGet httpGet = new HttpGet("http://www.itcast.cn");
        //3：使用httpClient对象发起请求，
        CloseableHttpResponse response = httpClient.execute(httpGet);
        System.out.println(response);
        //4:解析响应，从页获取数据
        //判断http状态码
        if(response.getStatusLine().getStatusCode()==200){
            //Entity是发送和接收信息载体、 httpEntity可能通过request或 reponse
            HttpEntity httpEntity = response.getEntity();
            System.out.println("输出httpEntity对象");
            System.out.println(httpEntity);
            //不加UTF-8参数，会中文乱码
            String content = EntityUtils.toString(httpEntity,"UTF-8");
            System.out.println("获取内容"+content);

        }
    }
}