http/https请求工具类
package com.platform.util;
import org.jsoup.Connection;
import org.jsoup.Connection.Method;
import org.jsoup.Connection.Response;
import org.jsoup.Jsoup;
import java.io.*;
import java.security.SecureRandom;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.X509TrustManager;
/**
* Http发送post请求工具，兼容http和https两种请求类型
*/
public class HttpUtils {
/**
* 请求超时时间
*/
private static final int TIME_OUT = 120000;
/**
* Https请求
*/
private static final String HTTPS = "https";
/**
* Content-Type
*/
private static final String CONTENT_TYPE = "Content-Type";
/**
* 表单提交方式Content-Type
*/
private static final String FORM_TYPE = "application/x-www-form-urlencoded;charset=UTF-8";
/**
* JSON提交方式Content-Type
*/
private static final String JSON_TYPE = "application/json;charset=UTF-8";
/**
* 发送Get请求
*
* @param url 请求URL
* @return HTTP响应对象
* @throws IOException 程序异常时抛出，由调用者处理
*/
public static Response get(String url) throws IOException {
return get(url, null);
}
/**
* 发送Get请求
*
* @param url 请求URL
* @param headers 请求头参数
* @return HTTP响应对象
* @throws IOException 程序异常时抛出，由调用者处理
*/
public static Response get(String url, Map<String, String> headers) throws IOException {
if (null == url || url.isEmpty()) {
throw new RuntimeException("The request URL is blank.");
}
// 如果是Https请求
if (url.startsWith(HTTPS)) {
getTrust();
}
Connection connection = Jsoup.connect(url);
connection.method(Connection.Method.GET);
connection.timeout(TIME_OUT);
connection.ignoreHttpErrors(true);
connection.ignoreContentType(true);
connection.maxBodySize(0);
if (null != headers) {
connection.headers(headers);
}
Response response = connection.execute();
return response;
}
/**
* 发送JSON格式参数POST请求
*
* @param url 请求路径
* @param params JSON格式请求参数
* @return HTTP响应对象
* @throws IOException 程序异常时抛出，由调用者处理
*/
public static Response post(String url, String params) throws IOException {
return doPostRequest(url, null, params);
}
/**
* 发送JSON格式参数POST请求
*
* @param url 请求路径
* @param headers 请求头中设置的参数
* @param params JSON格式请求参数
* @return HTTP响应对象
* @throws IOException 程序异常时抛出，由调用者处理
*/
public static Response post(String url, Map<String, String> headers, String params) throws IOException {
return doPostRequest(url, headers, params);
}
/**
* 字符串参数post请求
*
* @param url 请求URL地址
* @param paramMap 请求字符串参数集合
* @return HTTP响应对象
* @throws IOException 程序异常时抛出，由调用者处理
*/
public static Response post(String url, Map<String, String> paramMap) throws IOException {
return doPostRequest(url, null, paramMap, null);
}
/**
* 带请求头的普通表单提交方式post请求
*
* @param headers 请求头参数
* @param url 请求URL地址
* @param paramMap 请求字符串参数集合
* @return HTTP响应对象
* @throws IOException 程序异常时抛出，由调用者处理
*/
public static Response post(Map<String, String> headers, String url, Map<String, String> paramMap) throws IOException {
return doPostRequest(url, headers, paramMap, null);
}
/**
* 带上传文件的post请求
*
* @param url 请求URL地址
* @param paramMap 请求字符串参数集合
* @param fileMap 请求文件参数集合
* @return HTTP响应对象
* @throws IOException 程序异常时抛出，由调用者处理
*/
public static Response post(String url, Map<String, String> paramMap, Map<String, File> fileMap) throws IOException {
return doPostRequest(url, null, paramMap, fileMap);
}
/**
* 带请求头的上传文件post请求
*
* @param url 请求URL地址
* @param headers 请求头参数
* @param paramMap 请求字符串参数集合
* @param fileMap 请求文件参数集合
* @return HTTP响应对象
* @throws IOException 程序异常时抛出，由调用者处理
*/
public static Response post(String url, Map<String, String> headers, Map<String, String> paramMap, Map<String, File> fileMap) throws IOException {
return doPostRequest(url, headers, paramMap, fileMap);
}
/**
* 执行post请求
*
* @param url 请求URL地址
* @param headers 请求头
* @param jsonParams 请求JSON格式字符串参数
* @return HTTP响应对象
* @throws IOException 程序异常时抛出，由调用者处理
*/
private static Response doPostRequest(String url, Map<String, String> headers, String jsonParams) throws IOException {
if (null == url || url.isEmpty()) {
throw new RuntimeException("The request URL is blank.");
}
// 如果是Https请求
if (url.startsWith(HTTPS)) {
getTrust();
}
Connection connection = Jsoup.connect(url);
connection.method(Method.POST);
connection.timeout(TIME_OUT);
connection.ignoreHttpErrors(true);
connection.ignoreContentType(true);
connection.maxBodySize(0);
if (null != headers) {
connection.headers(headers);
}
connection.header(CONTENT_TYPE, JSON_TYPE);
connection.requestBody(jsonParams);
Response response = connection.method(Connection.Method.POST).execute();
/*Response response = connection.execute();*/
return response;
}
/**
* 普通表单方式发送POST请求
*
* @param url 请求URL地址
* @param headers 请求头
* @param paramMap 请求字符串参数集合
* @param fileMap 请求文件参数集合
* @return HTTP响应对象
* @throws IOException 程序异常时抛出，由调用者处理
*/
private static Response doPostRequest(String url, Map<String, String> headers, Map<String, String> paramMap, Map<String, File> fileMap) throws IOException {
if (null == url || url.isEmpty()) {
throw new RuntimeException("The request URL is blank.");
}
// 如果是Https请求
if (url.startsWith(HTTPS)) {
getTrust();
}
Connection connection = Jsoup.connect(url);
connection.method(Method.POST);
connection.timeout(TIME_OUT);
connection.ignoreHttpErrors(true);
connection.ignoreContentType(true);
connection.maxBodySize(0);
if (null != headers) {
connection.headers(headers);
}
// 收集上传文件输入流，最终全部关闭
List<InputStream> inputStreamList = null;
try {
// 添加文件参数
if (null != fileMap && !fileMap.isEmpty()) {
inputStreamList = new ArrayList<InputStream>();
InputStream in = null;
File file = null;
for (Entry<String, File> e : fileMap.entrySet()) {
file = e.getValue();
in = new FileInputStream(file);
inputStreamList.add(in);
connection.data(e.getKey(), file.getName(), in);
}
}
// 普通表单提交方式
else {
connection.header(CONTENT_TYPE, FORM_TYPE);
}
// 添加字符串类参数
if (null != paramMap && !paramMap.isEmpty()) {
connection.data(paramMap);
}
Response response = connection.execute();
return response;
}
// 关闭上传文件的输入流
finally {
closeStream(inputStreamList);
}
}
/**
* 关流
*
* @param streamList 流集合
*/
private static void closeStream(List<? extends Closeable> streamList) {
if (null != streamList) {
for (Closeable stream : streamList) {
try {
stream.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
/**
* 获取服务器信任
*/
private static void getTrust() {
try {
HttpsURLConnection.setDefaultHostnameVerifier(new HostnameVerifier() {
public boolean verify(String hostname, SSLSession session) {
return true;
}
});
SSLContext context = SSLContext.getInstance("TLS");
context.init(null, new X509TrustManager[] { new X509TrustManager() {
public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {}
public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {}
public X509Certificate[] getAcceptedIssuers() {
return new X509Certificate[0];
}
} }, new SecureRandom());
HttpsURLConnection.setDefaultSSLSocketFactory(context.getSocketFactory());
} catch (Exception e) {
e.printStackTrace();
}
}
}
需要jsoup包，maven仓库可以导
<!-- https://mvnrepository.com/artifact/org.jsoup/jsoup -->
<dependency>
<groupId>org.jsoup</groupId>
<artifactId>jsoup</artifactId>
<version>1.11.3</version>
</dependency>
