Java用HttpClient3发送http/https协议get/post请求,发送map,jso
使用的是httpclient 3.1,
使用"httpclient"4的写法相对简单点,百度:httpclient https post
当不需要使用任何证书访问https网页时,只需配置信任任何证书
其中信任任何证书的类MySSLProtocolSocketFactory
主要代码:
HttpClient client = new HttpClient();
Protocol myhttps = new Protocol("https", new MySSLProtocolSocketFactory(), 443);
Protocol.registerProtocol("https", myhttps);
PostMethod method = new PostMethod(url);
HttpUtil
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Java代码
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package com.urthinker.wxyh.util;
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import java.io.BufferedReader;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.util.Map;
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import org.apache.commons.httpclient.HttpClient;
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import org.apache.commons.httpclient.HttpMethod;
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import org.apache.commons.httpclient.HttpStatus;
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import org.apache.commons.httpclient.URIException;
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import org.apache.commons.httpclient.methods.GetMethod;
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import org.apache.commons.httpclient.methods.PostMethod;
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import org.apache.commons.httpclient.methods.RequestEntity;
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import org.apache.commons.httpclient.methods.StringRequestEntity;
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import org.apache.commons.httpclient.params.HttpMethodParams;
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import org.apache.commons.httpclient.protocol.Protocol;
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import org.apache.commons.httpclient.util.URIUtil;
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import org.apache.commons.lang.StringUtils;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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/**
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* HTTP工具类
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* 发送http/https协议get/post请求,发送map,json,xml,txt数据
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*
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* @author happyqing 2016-5-20
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*/
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public final class HttpUtil {
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private static Log log = LogFactory.getLog(HttpUtil.class);
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/**
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* 执行一个http/https get请求,返回请求响应的文本数据
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*
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* @param url 请求的URL地址
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* @param queryString 请求的查询参数,可以为null
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* @param charset 字符集
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* @param pretty 是否美化
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* @return 返回请求响应的文本数据
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*/
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public static String doGet(String url, String queryString, String charset, boolean pretty) {
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StringBuffer response = new StringBuffer();
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HttpClient client = new HttpClient();
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if(url.startsWith("https")){
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//https请求
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Protocol myhttps = new Protocol("https", new MySSLProtocolSocketFactory(), 443);
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Protocol.registerProtocol("https", myhttps);
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}
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HttpMethod method = new GetMethod(url);
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try {
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if (StringUtils.isNotBlank(queryString))
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//对get请求参数编码,汉字编码后,就成为%式样的字符串
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method.setQueryString(URIUtil.encodeQuery(queryString));
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client.executeMethod(method);
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if (method.getStatusCode() == HttpStatus.SC_OK) {
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BufferedReader reader = new BufferedReader(new InputStreamReader(method.getResponseBodyAsStream(), charset));
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String line;
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while ((line = reader.readLine()) != null) {
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if (pretty)
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response.append(line).append(System.getProperty("line.separator"));
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else
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response.append(line);
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}
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reader.close();
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}
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} catch (URIException e) {
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log.error("执行Get请求时,编码查询字符串“" + queryString + "”发生异常!", e);
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} catch (IOException e) {
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log.error("执行Get请求" + url + "时,发生异常!", e);
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} finally {
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method.releaseConnection();
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}
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return response.toString();
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}
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/**
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* 执行一个http/https post请求,返回请求响应的文本数据
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*
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* @param url 请求的URL地址
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* @param params 请求的查询参数,可以为null
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* @param charset 字符集
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* @param pretty 是否美化
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* @return 返回请求响应的文本数据
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*/
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public static String doPost(String url, Map<String, String> params, String charset, boolean pretty) {
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StringBuffer response = new StringBuffer();
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HttpClient client = new HttpClient();
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if(url.startsWith("https")){
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//https请求
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Protocol myhttps = new Protocol("https", new MySSLProtocolSocketFactory(), 443);
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Protocol.registerProtocol("https", myhttps);
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}
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PostMethod method = new PostMethod(url);
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//设置参数的字符集
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method.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET,charset);
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//设置post数据
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if (params != null) {
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//HttpMethodParams p = new HttpMethodParams();
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for (Map.Entry<String, String> entry : params.entrySet()) {
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//p.setParameter(entry.getKey(), entry.getValue());
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method.setParameter(entry.getKey(), entry.getValue());
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}
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//method.setParams(p);
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}
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try {
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client.executeMethod(method);
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if (method.getStatusCode() == HttpStatus.SC_OK) {
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BufferedReader reader = new BufferedReader(new InputStreamReader(method.getResponseBodyAsStream(), charset));
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String line;
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while ((line = reader.readLine()) != null) {
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if (pretty)
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response.append(line).append(System.getProperty("line.separator"));
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else
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response.append(line);
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}
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reader.close();
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}
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} catch (IOException e) {
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log.error("执行Post请求" + url + "时,发生异常!", e);
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} finally {
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method.releaseConnection();
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}
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return response.toString();
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}
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/**
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* 执行一个http/https post请求, 直接写数据 json,xml,txt
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*
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* @param url 请求的URL地址
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* @param params 请求的查询参数,可以为null
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* @param charset 字符集
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* @param pretty 是否美化
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* @return 返回请求响应的文本数据
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*/
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public static String writePost(String url, String content, String charset, boolean pretty) {
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StringBuffer response = new StringBuffer();
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HttpClient client = new HttpClient();
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if(url.startsWith("https")){
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//https请求
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Protocol myhttps = new Protocol("https", new MySSLProtocolSocketFactory(), 443);
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Protocol.registerProtocol("https", myhttps);
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}
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PostMethod method = new PostMethod(url);
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try {
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//设置请求头部类型参数
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//method.setRequestHeader("Content-Type","text/plain; charset=utf-8");//application/json,text/xml,text/plain
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//method.setRequestBody(content); //InputStream,NameValuePair[],String
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//RequestEntity是个接口,有很多实现类,发送不同类型的数据
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RequestEntity requestEntity = new StringRequestEntity(content,"text/plain",charset);//application/json,text/xml,text/plain
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method.setRequestEntity(requestEntity);
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client.executeMethod(method);
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if (method.getStatusCode() == HttpStatus.SC_OK) {
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BufferedReader reader = new BufferedReader(new InputStreamReader(method.getResponseBodyAsStream(), charset));
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String line;
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while ((line = reader.readLine()) != null) {
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if (pretty)
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response.append(line).append(System.getProperty("line.separator"));
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else
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response.append(line);
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}
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reader.close();
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}
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} catch (Exception e) {
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log.error("执行Post请求" + url + "时,发生异常!", e);
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} finally {
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method.releaseConnection();
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}
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return response.toString();
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}
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public static void main(String[] args) {
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try {
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String y = doGet("http://video.sina.com.cn/life/tips.html", null, "GBK", true);
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System.out.println(y);
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// Map params = new HashMap();
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// params.put("param1", "value1");
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// params.put("json", "{\"aa\":\"11\"}");
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// String j = doPost("http://localhost/uplat/manage/test.do?reqCode=add", params, "UTF-8", true);
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// System.out.println(j);
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} catch (Exception e) {
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// TODO Auto-generated catch block
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e.printStackTrace();
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}
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}
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}
MySSLProtocolSocketFactory
Java代码
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import java.io.IOException;
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import java.net.InetAddress;
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import java.net.InetSocketAddress;
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import java.net.Socket;
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import java.net.SocketAddress;
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import java.net.UnknownHostException;
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import java.security.KeyManagementException;
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import java.security.NoSuchAlgorithmException;
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import java.security.cert.CertificateException;
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import java.security.cert.X509Certificate;
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import javax.net.SocketFactory;
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import javax.net.ssl.SSLContext;
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import javax.net.ssl.TrustManager;
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import javax.net.ssl.X509TrustManager;
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import org.apache.commons.httpclient.ConnectTimeoutException;
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import org.apache.commons.httpclient.params.HttpConnectionParams;
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import org.apache.commons.httpclient.protocol.ProtocolSocketFactory;
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/**
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* author by lpp
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*
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* created at 2010-7-26 上午09:29:33
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*/
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public class MySSLProtocolSocketFactory implements ProtocolSocketFactory {
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private SSLContext sslcontext = null;
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private SSLContext createSSLContext() {
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SSLContext sslcontext = null;
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try {
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// sslcontext = SSLContext.getInstance("SSL");
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sslcontext = SSLContext.getInstance("TLS");
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sslcontext.init(null,
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new TrustManager[] { new TrustAnyTrustManager() },
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new java.security.SecureRandom());
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} catch (NoSuchAlgorithmException e) {
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e.printStackTrace();
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} catch (KeyManagementException e) {
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e.printStackTrace();
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}
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return sslcontext;
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}
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private SSLContext getSSLContext() {
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if (this.sslcontext == null) {
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this.sslcontext = createSSLContext();
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}
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return this.sslcontext;
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}
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public Socket createSocket(Socket socket, String host, int port, boolean autoClose)
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throws IOException, UnknownHostException {
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return getSSLContext().getSocketFactory().createSocket(socket, host, port, autoClose);
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}
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public Socket createSocket(String host, int port) throws IOException, UnknownHostException {
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return getSSLContext().getSocketFactory().createSocket(host, port);
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}
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public Socket createSocket(String host, int port, InetAddress clientHost, int clientPort)
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throws IOException, UnknownHostException {
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return getSSLContext().getSocketFactory().createSocket(host, port, clientHost, clientPort);
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}
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public Socket createSocket(String host, int port, InetAddress localAddress,
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int localPort, HttpConnectionParams params) throws IOException,
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UnknownHostException, ConnectTimeoutException {
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if (params == null) {
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throw new IllegalArgumentException("Parameters may not be null");
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}
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int timeout = params.getConnectionTimeout();
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SocketFactory socketfactory = getSSLContext().getSocketFactory();
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if (timeout == 0) {
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return socketfactory.createSocket(host, port, localAddress, localPort);
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} else {
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Socket socket = socketfactory.createSocket();
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SocketAddress localaddr = new InetSocketAddress(localAddress, localPort);
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SocketAddress remoteaddr = new InetSocketAddress(host, port);
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socket.bind(localaddr);
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socket.connect(remoteaddr, timeout);
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return socket;
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}
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}
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// 自定义私有类
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private static class TrustAnyTrustManager implements X509TrustManager {
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public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
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}
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public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
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}
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public X509Certificate[] getAcceptedIssuers() {
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return new X509Certificate[] {};
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}
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}
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}
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