使用HttpClient发送HTTPS请求以及配置Tomcat支持SSL
这里使用的是HttpComponents-Client-4.1.2
1 package com.jadyer.util; 2 3 import java.io.File; 4 import java.io.FileInputStream; 5 import java.io.FileNotFoundException; 6 import java.io.IOException; 7 import java.security.KeyManagementException; 8 import java.security.KeyStore; 9 import java.security.KeyStoreException; 10 import java.security.NoSuchAlgorithmException; 11 import java.security.UnrecoverableKeyException; 12 import java.security.cert.CertificateException; 13 14 import org.apache.http.HttpEntity; 15 import org.apache.http.HttpResponse; 16 import org.apache.http.ParseException; 17 import org.apache.http.client.ClientProtocolException; 18 import org.apache.http.client.HttpClient; 19 import org.apache.http.client.methods.HttpGet; 20 import org.apache.http.conn.scheme.Scheme; 21 import org.apache.http.conn.ssl.SSLSocketFactory; 22 import org.apache.http.impl.client.DefaultHttpClient; 23 import org.apache.http.util.EntityUtils; 24 25 /** 26 * 使用HttpClient模拟HTTPS访问 27 * @see =================================================================================================================================== 28 * @see 【配置Tomcat支持SSL(即让Tomcat下的Web应用处于SSL安全通道中)】 29 * @see =================================================================================================================================== 30 * @see 1、生成KeyStore 31 * @see 1)运行-->CMD-->"keytool -genkey -alias Jadyer_SSL_20120508 -keyalg RSA -validity 1024 -keystore D:\Jadyer_SSL_20120508.keystore" 32 * @see 参数说明----->-genkey 表示生成密钥 33 * @see -alias 指定别名,这里是Jadyer_SSL_20120508 34 * @see -keyalg 指定算法,这里是RSA 35 * @see -validity 指定证书有效期,这里是1024天 36 * @see -keystore 指定存储位置,这里是D:\\Jadyer_SSL_20120508.keystore 37 * @see 2)CMD输出----->输入keystore密码：hongyu75 38 * @see 再次输入新密码：hongyu75 39 * @see 您的名字与姓氏是什么？[Unknown]：127.0.0.1（这里要根据实际情况填写网站域名或者IP,否则会出现证书上的名称无效） 40 * @see 您的组织单位名称是什么？[Unknown]：http://blog.csdn.net/jadyer 41 * @see 您的组织名称是什么？[Unknown]：JavaLover_jadyer 42 * @see 您所在的城市或区域名称是什么？[Unknown]：BJ 43 * @see 您所在的州或省份名称是什么？[Unknown]：BJ_NanTian 44 * @see 该单位的两字母国家代码是什么[Unknown]：CN 45 * @see CN=127.0.0.1, OU=http://blog.csdn.net/jadyer, O=JavaLover_jadyer, L=BJ, ST=BJ_NanTian, C=CN 正确吗？[否]：Y 46 * @see 输入<Jadyer_SSL_20120508>的主密码（如果和 keystore 密码相同，按回车）：这里按回车键 47 * @see （这里的主密码一定要与keystore密码相同,否则启动Tomcat时就会告诉你java.io.IOException: Cannot recover key） 48 * @see 3)接下来就会按照-keystore参数值在指定位置生成指定的KeyStore文件了 49 * @see =================================================================================================================================== 50 * @see 2、让Tomcat支持SSL 51 * @see 1)将生成的Jadyer_SSL_20120508.keystore拷贝到\\%TOMCAT_HOME%\\conf\\目录中(其它目录也可以) 52 * @see 2)修改\\%TOMCAT_HOME%\\conf\\server.xml文件(大约在85行的位置),新增内容如下 53 * @see <Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true" 54 * @see maxThreads="150" scheme="https" secure="true" 55 * @see clientAuth="false" sslProtocol="TLS" URIEncoding="UTF-8" 56 * @see keystoreFile="conf/Jadyer_SSL_20120508.keystore" keystorePass="hongyu75"/> 57 * @see 3)这样,我们的Tomcat就支持HTTPS访问了(关于<Connector/>标签中的属性说明,参拜Google大神) 58 * @see =================================================================================================================================== 59 * @see 3、用浏览器访问我们的应用 60 * @see 1)输入https://127.0.0.1:8443/blog会发现你的应用已经处于SSL安全通道中了 61 * @see 此时,如果我们在浏览器里访问http://127.0.0.1:8443/blog会发现,竟然能访问 62 * @see 也就是说,我们虽然启用了HTTPS,但现在还可以绕开HTTPS直接访问HTTP还能,这样HTTPS也就起不到作用了 63 * @see 2)我们可以配置一下\\%TOMCAT_HOME%\\conf\\web.xml文件,使得HTTP的访问能够重定向到HTTPS的连接 64 * @see 修改位置大约为web.xml的1224行,即在</welcome-file-list>标签后面加入下面的内容,即可 65 * @see <security-constraint> 66 * @see <!-- Authorization setting for SSL --> 67 * @see <web-resource-collection> 68 * @see <web-resource-name>SSL_App</web-resource-name> 69 * @see <!-- 指明需要SSL的url --> 70 * @see <url-pattern>/*</url-pattern> 71 * @see <http-method>GET</http-method> 72 * @see <http-method>POST</http-method> 73 * @see </web-resource-collection> 74 * @see <user-data-constraint> 75 * @see <!-- 指明需要SSL --> 76 * @see <transport-guarantee>CONFIDENTIAL</transport-guarantee> 77 * @see </user-data-constraint> 78 * @see </security-constraint> 79 * @see =================================================================================================================================== 80 * @author http://blog.csdn.net/jadyer 81 * @editor Feb 1, 2012 3:02:27 PM 82 */ 83 public class HttpClientUtil { 84 public static void main(String[] args)throws Exception{ 85 //String requestUrl = "http://127.0.0.1:8088/test/web/userac"; 86 String requestUrl = "https://127.0.0.1:8443/test/web/userac"; 87 System.out.println(sendSSLRequest(requestUrl)); 88 } 89 90 /** 91 * 发送HTTPS请求 92 * @param requestUrl 请求的地址 93 * @return 响应内容 94 */ 95 @SuppressWarnings("finally") 96 public static String sendSSLRequest(String requestUrl){ 97 long responseLength = 0; //响应长度 98 String responseContent = null; //响应内容 99 HttpClient httpClient = new DefaultHttpClient(); //创建默认的httpClient实例 100 try { 101 KeyStore trustStore = KeyStore.getInstance(KeyStore.getDefaultType()); 102 FileInputStream fis = new FileInputStream(new File("F:\\Tool\\IDE\\Jadyer_SSL_20120508.keystore")); 103 try { 104 trustStore.load(fis, "hongyu75".toCharArray()); //加载KeyStore 105 } catch (NoSuchAlgorithmException e) { 106 e.printStackTrace(); 107 } catch (CertificateException e) { 108 e.printStackTrace(); 109 } catch (IOException e) { 110 e.printStackTrace(); 111 } finally { 112 try { 113 fis.close(); 114 } catch (IOException e) { 115 e.printStackTrace(); 116 } 117 } 118 SSLSocketFactory socketFactory = new SSLSocketFactory(trustStore); //创建Socket工厂,将trustStore注入 119 Scheme sch = new Scheme("https", 8443, socketFactory); //创建Scheme 120 httpClient.getConnectionManager().getSchemeRegistry().register(sch); //注册Scheme 121 HttpGet httpGet = new HttpGet(requestUrl); //创建HttpGet 122 HttpResponse response = httpClient.execute(httpGet); //执行GET请求 123 HttpEntity entity = response.getEntity(); //获取响应实体 124 if (null != entity) { 125 responseLength = entity.getContentLength(); 126 responseContent = EntityUtils.toString(entity, "UTF-8"); 127 EntityUtils.consume(entity); //Consume response content 128 } 129 System.out.println("请求地址: " + httpGet.getURI()); 130 System.out.println("响应状态: " + response.getStatusLine()); 131 System.out.println("响应长度: " + responseLength); 132 System.out.println("响应内容: " + responseContent); 133 } catch (KeyManagementException e) { 134 e.printStackTrace(); 135 } catch (UnrecoverableKeyException e) { 136 e.printStackTrace(); 137 } catch (KeyStoreException e) { 138 e.printStackTrace(); 139 } catch (FileNotFoundException e) { 140 e.printStackTrace(); 141 } catch (NoSuchAlgorithmException e) { 142 e.printStackTrace(); 143 } catch (ClientProtocolException e) { 144 e.printStackTrace(); 145 } catch (ParseException e) { 146 e.printStackTrace(); 147 } catch (IOException e) { 148 e.printStackTrace(); 149 } finally { 150 httpClient.getConnectionManager().shutdown(); //关闭连接,释放资源 151 return responseContent; 152 } 153 } 154 }
不定期会发布一些实用的Java开发文章
