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模拟以Form表单方式发送Http请求

2017-07-29 17:50 399 查看
有的时候我们需要模拟实现以表单的方式提交一个请求,看看后台服务是否正常处理,这里我们简单实现并记录一下,看看怎么实现。

废话不多说,直接贴出代码:

package com.iflytek.ossp.vaserver.cmd;

import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

import org.apache.http.HttpEntity;
import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.config.RequestConfig;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils;

public class Test1 {
public static void main(String[] args) throws ClientProtocolException, IOException {
Map<String,String> params = new HashMap<String,String>();
params.put("name", "majing");
String result = httpPostWithForm("http://localhost:8081/simulation/vaclient/ttokenvalidate/success", params);
System.out.println(result);
}

private static String httpPostWithForm(String url, Map<String, String> params) throws ClientProtocolException, IOException {
List<BasicNameValuePair> pairList = new ArrayList<BasicNameValuePair>();
for (Entry<String, String> param : params.entrySet()) {
pairList.add(new BasicNameValuePair(param.getKey(), param.getValue()));
}
HttpPost httpPost = new HttpPost(url);

//添加代理,用于抓包
HttpHost proxy = new HttpHost("127.0.0.1", 8888, "http");
RequestConfig requestConfig = RequestConfig.custom().setConnectionRequestTimeout(8000).setConnectTimeout(8000).setSocketTimeout(8000).setProxy(proxy).build();
httpPost.setConfig(requestConfig);

httpPost.setEntity(new UrlEncodedFormEntity(pairList, "utf-8"));
String respContent = null;
HttpClient _httpClient = HttpClients.createDefault();
HttpResponse resp = _httpClient.execute(httpPost);
HttpEntity he = resp.getEntity();
respContent = EntityUtils.toString(he, "UTF-8");
return respContent;
}
}

在上面的代码中,为了使用Fiddler抓包查看是否请求报文是以Post方式表单提交方式请求的,所以在代码中增加了相关的代理设置代码。

这里使用的HttpClient包的版本是4.3.2,经过测试用例可以正常执行。这里仅做知识点的记录,有需要的可以看下,没有需要的勿喷,谢谢!
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标签:  表单 Http请求