Java 使用 HttpClient 发送 Post请求(http与https)

小咪咪 2022-04-08 11:46 399阅读 0赞

发送 http 请求

**发送 http 请求 **
    package com.zealotpz.demo;
    
    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.protocol.HTTP;
    import org.apache.http.util.EntityUtils;
    
    import java.util.ArrayList;
    import java.util.List;
    import java.util.Map;
    
    
    public class HttpClientTest {
    //设置链接超时和请求超时等参数，否则会长期停止或者崩溃
    private static RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(60000).setConnectTimeout(60000).setConnectionRequestTimeout(60000).build();
    
    public static String sendPost(String url, Map<String, String> params) {
    String responseContent = null;
    try {
    //建立HttpPost对象
    HttpPost httpPost = new HttpPost(url);
    //建立一个NameValuePair数组，用于存储欲传送的参数
    List<NameValuePair> nvps = new ArrayList<NameValuePair>();
    //遍历参数 map,添加参数
    for (String key : params.keySet()) {
    nvps.add(new BasicNameValuePair(key, params.get(key)));
    }
    //参数集合传入到一个UrlEncodedFormEntity中并设置编码
    httpPost.setEntity(new UrlEncodedFormEntity(nvps, HTTP.UTF_8));
    CloseableHttpClient httpClient = HttpClients.custom().setDefaultRequestConfig(requestConfig).build();
    //发送Post,并返回一个HttpResponse对象
    CloseableHttpResponse httpResponse = httpClient.execute(httpPost);
    //使用响应对象获取响应实
    HttpEntity httpEntity = httpResponse.getEntity();
    if (httpEntity != null) {
    //将响应实体转为字符串
    responseContent = EntityUtils.toString(httpEntity, "UTF-8");
    }
    } catch (Exception e) {
    e.printStackTrace();
    }
    //返回应答字符串
    return responseContent;
    }

--------------------

发送 https 请求

**发送 https 请求 **
    package com.zealotpz.demo;
    
    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.conn.ssl.SSLConnectionSocketFactory;
    import org.apache.http.conn.ssl.SSLContextBuilder;
    import org.apache.http.conn.ssl.TrustStrategy;
    import org.apache.http.conn.ssl.X509HostnameVerifier;
    import org.apache.http.impl.client.CloseableHttpClient;
    import org.apache.http.impl.client.HttpClients;
    import org.apache.http.message.BasicNameValuePair;
    import org.apache.http.protocol.HTTP;
    import org.apache.http.util.EntityUtils;
    
    import javax.net.ssl.SSLContext;
    import javax.net.ssl.SSLException;
    import javax.net.ssl.SSLSession;
    import javax.net.ssl.SSLSocket;
    import java.io.IOException;
    import java.security.GeneralSecurityException;
    import java.security.cert.CertificateException;
    import java.security.cert.X509Certificate;
    import java.util.ArrayList;
    import java.util.List;
    import java.util.Map;
    
    /**
    * Created by zealotpz on 2017/2/9.
    */
    public class HttpClientTest {
    //设置链接超时和请求超时等参数，否则会长期停止或者崩溃
    private static RequestConfig requestConfig = RequestConfig.custom().setSocketTimeout(60000).setConnectTimeout(60000).setConnectionRequestTimeout(60000).build();
    
    public static String sendHttpsPost(String url, Map<String, String> params) {
    String responseContent = null;
    try {
    HttpPost httpPost = new HttpPost(url);
    List<NameValuePair> nvps = new ArrayList<NameValuePair>();
    for (String key : params.keySet()) {
    nvps.add(new BasicNameValuePair(key, params.get(key)));
    }
    httpPost.setEntity(new UrlEncodedFormEntity(nvps, HTTP.UTF_8));
    httpPost.addHeader("Content-Type", "application/json; charset=UTF-8");//修改请求头
    // httpPost.setEntity(new StringEntity(JacksonUtils.toJson(encrypt),"UTF-8"));//传递json数据对象encrypt为自己创建的Dto对象
    CloseableHttpClient httpClient = HttpClients.custom().setSSLSocketFactory(createSSLConnSocketFactory()).setDefaultRequestConfig(requestConfig).build();
    CloseableHttpResponse httpResponse = httpClient.execute(httpPost);
    HttpEntity httpEntity = httpResponse.getEntity();
    if (httpEntity != null) {
    responseContent = EntityUtils.toString(httpEntity, HTTP.UTF_8);
    }
    } catch (Exception e) {
    e.printStackTrace();
    }
    return responseContent;
    }

--------------------

创建SSL安全连接

//创建SSL安全连接
    private static SSLConnectionSocketFactory createSSLConnSocketFactory() {
    SSLConnectionSocketFactory sslsf = null;
    try {
    SSLContext sslContext = new SSLContextBuilder().loadTrustMaterial(null, new TrustStrategy() {
    
    public boolean isTrusted(X509Certificate[] chain, String authType) throws CertificateException {
    return true;
    }
    }).build();
    sslsf = new SSLConnectionSocketFactory(sslContext, new X509HostnameVerifier() {
    
    public boolean verify(String arg0, SSLSession arg1) {
    return true;
    }
    
    public void verify(String host, SSLSocket ssl) throws IOException {
    }
    
    public void verify(String host, X509Certificate cert) throws SSLException {
    }
    
    public void verify(String host, String[] cns, String[] subjectAlts) throws SSLException {
    }
    });
    } catch (GeneralSecurityException e) {
    e.printStackTrace();
    }
    return sslsf;
    }
    }

public static void main(String[] args) {
            String url ="https://rsb.pingan.com.cn/brop/ma/cust/app/market/loan/applyNewLoanC.do";
            Encrypt encrypt = new Encrypt();
            encrypt.setEncryptFlag("YES");
            encrypt.setEncryptParam("HNuto1vtwEer3FaMNHRclszJUP3sT61%2BM62YN8b87S5ha3iiAb%2BboUKTjVaPrCREDrwVnWZERYe0SEFdhboM9DVRHnG3HJxZzByZGALNJxSs5nkAvigv6ErlqdH%2FBcpxHQINl4aXRGVm5AhtEXc5K%2Bu423ULxij%2FG%2BdBRQds5us%3D");
            encrypt.setHouseLoan("YES");
            encrypt.setInsurancePolicy("YES");
            encrypt.setOuterSource("xyd0001");
            encrypt.setProvidentFund("YES");
            encrypt.setSource("sa0001459");
            encrypt.setUserAge("23-55岁");
            encrypt.setUserCreditCard("YES");
            encrypt.setCity("广东-深圳");
            encrypt.setCityCode("440300");
    
    方式一：
           /* String url ="http://10.3.110.138:8089/crm/user/login";
            paramsMap.put("username","wwl");
            paramsMap.put("password","123456");*/
    
    方式二：
            String Result =HttpRequestUtils.sendHttpsPost(url,encrypt);
            System.out.println(Result);
        }