HttpClient 请求 URL字符集转码问题

问题是这样的，我用eclipse发送httpclient请求如下没有问题，但是在idea中就返回400，为毛呢？？？excuse me?

package com.vol.timingTasks;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;

import java.io.IOException;

/**
 * 数据抽取测试类
 *
 * @author xbx
 *
 */
public class XBXmain {
  private final static String ENCODE = "utf-8";

  public static void main(String[] args) throws Exception {
		getDataA();
  }

  /*
   * Basic验证
   * 用户名：
   * 密钥：
   */
  public static void getDataA() throws Exception{
    HttpResponse httpResponse = null;
    HttpClient httpClient = new DefaultHttpClient();
    String projectName = "中科洛阳信息产业园项目(一期)";
    String url = "http://labour.ztjs.cn/clound/wsForThird/laboursByProjectName/"+projectName ;
    HttpGet get = new HttpGet(url);
    try {

      // 创建HttpClientBuilder
      HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();
      // 设置BasicAuth
      CredentialsProvider provider = new BasicCredentialsProvider();
      // Create the authentication scope
      AuthScope scope = new AuthScope(AuthScope.ANY_HOST, AuthScope.ANY_PORT, AuthScope.ANY_REALM);
      // Create credential pair，在此处填写用户名和密码
      UsernamePasswordCredentials credentials = new UsernamePasswordCredentials("", "");
      // Inject the credentials
      provider.setCredentials(scope, credentials);
      // Set the default credentials provider
      httpClientBuilder.setDefaultCredentialsProvider(provider);
      // HttpClient
      CloseableHttpClient closeableHttpClient = httpClientBuilder.build();

      httpResponse = closeableHttpClient.execute(get);
      HttpEntity httpEntity = httpResponse.getEntity();
      String httpResult = EntityUtils.toString(httpEntity);
      String httpResult2 = EntityUtils.toString(httpEntity);
    } catch (IOException e) {
    }

  }

}

把 访问地址：http://labour.ztjs.cn/clound/wsForThird/laboursByProjectName/中科洛阳信息产业园项目(一期) 放在谷歌浏览器，然后再复制出来，发现汉字编码格式变了。ok，那就先转换下编码格式再发送请求。  修改后代码如下：

package com.vol.timingTasks;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.auth.AuthScope;
import org.apache.http.auth.UsernamePasswordCredentials;
import org.apache.http.client.CredentialsProvider;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.BasicCredentialsProvider;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.client.HttpClientBuilder;
import org.apache.http.util.EntityUtils;

import java.io.IOException;

/**
 * 数据抽取测试类
 *
 * @author xbx
 *
 */
public class XBXmain {
  private final static String ENCODE = "utf-8";

  public static void main(String[] args) throws Exception {
		getDataA();
  }

  /*
   * Basic验证
   * 用户名：
   * 密钥：
   */
  public static void getDataA() throws Exception{
    HttpResponse httpResponse = null;
    HttpClient httpClient = new DefaultHttpClient();
    String projectName = "中科洛阳信息产业园项目(一期)";
    String url = "http://labour.ztjs.cn/clound/wsForThird/laboursByProjectName/"+java.net.URLEncoder.encode(projectName, ENCODE);//URL 中文 转码
    HttpGet get = new HttpGet(url);
    try {

      // 创建HttpClientBuilder
      HttpClientBuilder httpClientBuilder = HttpClientBuilder.create();
      // 设置BasicAuth
      CredentialsProvider provider = new BasicCredentialsProvider();
      // Create the authentication scope
      AuthScope scope = new AuthScope(AuthScope.ANY_HOST, AuthScope.ANY_PORT, AuthScope.ANY_REALM);
      // Create credential pair，在此处填写用户名和密码
      UsernamePasswordCredentials credentials = new UsernamePasswordCredentials("", "");
      // Inject the credentials
      provider.setCredentials(scope, credentials);
      // Set the default credentials provider
      httpClientBuilder.setDefaultCredentialsProvider(provider);
      // HttpClient
      CloseableHttpClient closeableHttpClient = httpClientBuilder.build();

      httpResponse = closeableHttpClient.execute(get);
      HttpEntity httpEntity = httpResponse.getEntity();
      String httpResult = EntityUtils.toString(httpEntity);
      String httpResult2 = EntityUtils.toString(httpEntity);
    } catch (IOException e) {
    }

  }

}

再试试，请求成功，只需要转下编码：

String url = "http://labour.ztjs.cn/clound/wsForThird/laboursByProjectName/"+java.net.URLEncoder.encode(projectName, ENCODE);//URL  中文 转码

到此这篇关于HttpClient 请求 URL字符集转码问题的文章就介绍到这了,更多相关HttpClient 请求 URL字符集转码内容请搜索我们以前的文章或继续浏览下面的相关文章希望大家以后多多支持我们！