Java处理Http请求的几种方式总结

1.commons-httpclient  简洁快速模拟HTTP请求

<dependency>

    <groupId>commons-httpclient</groupId>

    <artifactId>commons-httpclient</artifactId>

    <version>3.1</version>

     </dependency>

(1)

import java.io.IOException;

 

import org.apache.commons.httpclient.HttpClient;

import org.apache.commons.httpclient.HttpException;

import org.apache.commons.httpclient.methods.PostMethod;

 

/**

 * Hello world!

 * 

 */

public class App {

private static final HttpClient client = new HttpClient();

public static void main(String[] args) throws HttpException, IOException, InterruptedException {

for (int i = 0; i < 2000; i++) {

PostMethod method = new PostMethod("http://open.kaduoyun.com/api/v1.0/sendMsg.htm");

//http://localhost:8080/vs-rest/rs/user/register/gaozz/jerrison/[e-mail]/123456/test/0/30/addrtest/18600635193/touxiang/1100

method.getParams().setContentCharset("UTF-8");

method.addParameter("appkey", "38F325796F584656946801146D177C18");

method.addParameter("appsecret", "4451E66CDBAE8C01FC1B12D70CDFA077");

method.addParameter("title", "测试标题");

method.addParameter("content", "测试内容"+i);

//method.addParameter("clientid", "");

client.executeMethod(method);

System.out.println(method.getResponseBodyAsString()+i);

Thread.sleep(10);

}

}

}

 (2)

import java.io.IOException;

 

import org.apache.commons.httpclient.HttpClient;

import org.apache.commons.httpclient.HttpException;

import org.apache.commons.httpclient.methods.PostMethod;

 

/**

 * Hello world!

 * 

 */

public class UserTestApp {

private static final HttpClient client = new HttpClient();

 

private static  final String urlStr = "http://192.168.0.117:8080";

//private static  final String urlStr = "http://192.168.0.110:8080/vs-rest";

public static void main(String[] args) throws HttpException, IOException, InterruptedException {

//testLogin();

//testSearchCity();

//testRegister();

testFindPassword();

//testVerifyUnique();

//testUpdateUserInfo();

//testSearch();

//testSchoolCompetitor();

//testSignUp();

//testVote();

}

 

public static void testRegister() throws HttpException, IOException, InterruptedException{

PostMethod method = new PostMethod(urlStr+"/rs/user/register");

//http://localhost:8080/vs-rest/rs/user/register/gaozz/jerrison/[e-mail]/123456/test/0/30/addrtest/18600635193/touxiang/1100

method.getParams().setContentCharset("UTF-8");

method.addParameter("userName", "gaozz");

method.addParameter("nickName", "jerrison11");

method.addParameter("email", "[e-mail]");  

method.addParameter("password", "123456"); 

method.addParameter("equipmentId", "test818"); 

method.addParameter("sex", "0");  

method.addParameter("age", "30"); 

method.addParameter("addr", "addrtest");  

method.addParameter("phone", "18600635193"); 

method.addParameter("avatar", "touxiang");

method.addParameter("birthday", "1100");

client.executeMethod(method);

System.out.println(method.getResponseBodyAsString());

Thread.sleep(10);

}

 

public static void testLogin() throws HttpException, IOException, InterruptedException{

PostMethod method = new PostMethod(urlStr+"/rs/user/login");

method.getParams().setContentCharset("UTF-8");

method.addParameter("userName", "gaozz");

method.addParameter("password", "654321"); 

client.executeMethod(method);

System.out.println(method.getResponseBodyAsString());

Thread.sleep(10);

}

 

 

public static void testFindPassword() throws HttpException, IOException, InterruptedException{

PostMethod method = new PostMethod(urlStr+"/rs/user/findPassword");

method.getParams().setContentCharset("UTF-8");

method.addParameter("userName", "slaton");

method.addParameter("verifyCode", "060468");

method.addParameter("newPassword", "12345678");

client.executeMethod(method);

System.out.println(method.getResponseBodyAsString());

Thread.sleep(10);

}

 

}

 

 

2.apache  org.apache.httpcomponents   httpclient

 <dependency>

<groupId>org.apache.httpcomponents</groupId>

<artifactId>httpclient</artifactId>

<version>4.5.2</version>

</dependency>

 

importorg.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.params.CoreConnectionPNames;
import org.apache.http.util.EntityUtils;

new version 4.5:

public static String httpPostUrlForPdf(String url) {
    // 设置HTTP请求参数
String result = null;
    CloseableHttpClient client = HttpClients.createDefault();
    HttpGet httpGet = new HttpGet(url);
    try {
        CloseableHttpResponse response = client.execute(httpGet);
        result = EntityUtils.toString(response.getEntity(), "UTF-8");
    } catch (ClientProtocolException e) {
        logger.error("http接口调用异常：url is::" + url, e);
        return null;
    } catch (IOException e) {
        logger.error("http接口调用异常：url is::" + url, e);
        return null;
    } finally {
        try {
            client.close();
        } catch (IOException e) {
            logger.error("http接口调用异常：url is::" + url, e);
        }
    }
    return result;
}

 

old version 4.3:

public static String httpPost(String url, String jsonString) {
    // 设置HTTP请求参数
String result = null;
    HttpClient httpClient = new DefaultHttpClient();
    HttpPost httpPost = new HttpPost(url);
    try {
        httpClient.getParams().setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, 10000);//设置请求超时时间 10s
StringEntity entity = new StringEntity(jsonString);
        entity.setContentEncoding("UTF-8");
        entity.setContentType("application/json");
        httpPost.setEntity(entity);
        HttpEntity resEntity = httpClient.execute(httpPost).getEntity();
        result = EntityUtils.toString(resEntity, "UTF-8");
    } catch (Exception e) {
        logger.error("http接口调用异常：url is::" + url, e);
        return null;
    } finally {
        httpClient.getConnectionManager().shutdown();
    }

    return result;
}

 

调用：

 

ReqChedaiParamDataVo dataVo = new ReqChedaiParamDataVo();
dataVo.setIdCard(idCard);
Map<String, Object> map = new HashMap<String, Object>();
map.put("content", dataVo);
String jsonString = JSONObject.toJSONString(map);
LOGGER.info("请求对象json::" + jsonString);
String response = HttpUtils.httpPost(queryMemberInfoHttpUrl, jsonString);
LOGGER.info("响应字符串::" + response);

 

Another:

 

HttpPost httpPost22 = new HttpPost("http://test.com/abc");
List<NameValuePair> nvps = new ArrayList<NameValuePair>();
nvps.add(new BasicNameValuePair("username", "vip"));
nvps.add(new BasicNameValuePair("password", "secret"));

try {
    httpPost22.setEntity(new UrlEncodedFormEntity(nvps));
    httpClient.execute(httpPost);
} catch (IOException e) {
    e.printStackTrace();
}