自己动手写SSO（单点登录）

末蓝、 2022-09-26 03:15 126阅读 0赞

SSO在我们的应用中非常常见，例如我们在OA系统登录了，我们就可以直接进入采购系统，不需要再登录了，这样使我们非常方便。现在网上也有很多实现方法，于是乎我也想写一个看看。我主要用到的是cookie的机制。在此，分享给大家， **同时提供源代码下载**。

进入主题：

**工程说明**

SSO的实现一般是会有一个SSO Server，也会叫认证中心，同时也会有被认证的系统，如OA系统、采购系统等，他们就相当于SSO Server的client。

为了更形象体现SSO，我写的SSO是有三个工程：一个SSO Server端口为8081，一个OA系统端口为8082，一个采购系统端口为8083。如图：

![0577dd49-c12b-3a06-b8a0-a1210f14c324.png][]   
  **流程介绍**

在整个SSO流程当，有两个流程非常重要，第一个是用户没有登录系统到登录系统的过程；第二是用户在一个系统当中已经登录（例如在OA系统中登录 了），但又想进入另一个系统（例如进入PRO系统）的过程，如果把这两个过程搞定了，那么SSO也就搞定了。我画了两幅图来说明这两个过程。

先看用户没有登录系统到登录系统的过程，如图：

![3e4b6f40-7eb1-3a2a-bc5c-00c2aa168173.png][]   
 1：用户通过URL访问OA系统。

2：在OA系统中的filter发现这个URL没有ticket（你暂且就把ticket看做是门票），此时就会跳转到SSO Server。

3：SSO Server中的filter发现该客户端中的cookie中没有相应信息，也即是一个没有登录的用户，那么会跳转到登录页面。

4：用户在登录页面填写相应信息，然后通过post方式提交到SSO Server中。

5：SSO Server会校验用户信息（我为了快，我的校验方式就是要用户名为：cloud，同时密码为：cloud），同时在cookie中放username。

6：将生成ticket和username放到JVMCache中，在实际项目应该放到Memcached中，它的用处等下分析。

7，8：就是在用户访问OA系统的URL基础上加上了一个ticket参数，这样跳转到OA系统。

（此时进入OA系统时，filter发现URL是带ticket的，则filter会根据带过来的ticket并通过HttpClient的形式去调用SSO Server中的TicektServlet，这样就会返回用户名，其实这个用户名就是从JVMCache拿到的，同时马上将这个ticket从JVMCache中移除，这样保证一个ticket只会用一次，然后把返回的用户名放到session中）

9：session中有了用户名，说明用户登录成功了，则会去本应该返问的servlet。

10，11：将OA系统返回的视图给用户。

第二过程，用户已经登录成功了，但要访问另一个系统，如图：

![e8f0df56-00c0-3856-b4c8-c8cc5e39d209.png][]   
  1：用户通过URL访问PRO系统。

2：在PRO系统中的filter发现这个URL没有ticket，此时就会跳转到SSO Server。此时，由于用户登录了，所以cookie中有相应的信息（例如用户名），此时SSO Server中的filter会生成一个ticket。

3：将生成的ticket和username放到JVMCache中。

4：就是在用户访问PRO系统的URL基础上加上了一个ticket参数，这样跳转到PRO系统。

（此时进入PRO系统时，filter发现URL是带ticket的，则filter会根据带过来的ticket并通过HttpClient的形式去调用SSO Server中的TicektServlet，这样就会返回用户名，其实这个用户名就是从JVMCache拿到的，同时马上将这个ticket从JVMCache中移除，这样保证一个ticket只会用一次，然后把返回的用户名放到session中）

5：session中有了用户名，说明用户登录成功了，则会去本应该返问的servlet。

5，7：将PRO系统返回的视图给用户。

**关键代码**

先看SSO Server工程中的代码：

pom.xml

（注意：端口为8081）

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
      <modelVersion>4.0.0</modelVersion>
      <groupId>com.cloud.sso.server</groupId>
      <artifactId>sso-server</artifactId>
      <packaging>war</packaging>
      <version>0.0.1-SNAPSHOT</version>
      <name>sso-server Maven Webapp</name>
      <url>http://maven.apache.org</url>
      <dependencies>
          <dependency>
              <groupId>javax.servlet</groupId>
              <artifactId>servlet-api</artifactId>
              <version>2.5</version>
              <scope>provided</scope>
          </dependency>
      </dependencies>
      <build>
        <finalName>sso-server</finalName>
        <plugins>
          <plugin>
              <groupId>org.mortbay.jetty</groupId>
              <artifactId>jetty-maven-plugin</artifactId>
              <version>8.1.9.v20130131</version>
              <configuration>
                  <stopKey>stop</stopKey>
                  <stopPort>6000</stopPort>
                  <webAppConfig>
                      <contextPath>/sso</contextPath>
                  </webAppConfig>
                  <scanIntervalSeconds>4</scanIntervalSeconds>
                  <connectors>
                      <connector implementation="org.eclipse.jetty.server.nio.SelectChannelConnector">
                          <port>8081</port>
                          <maxIdleTime>60000</maxIdleTime>
                      </connector>
                  </connectors>
              </configuration>
          </plugin>
        </plugins>
      </build>
    </project>

SSO Server中的filter

SSOServerFilter.java

package com.cloud.sso.server.filter;
    
    import java.io.IOException;
    
    import javax.servlet.Filter;
    import javax.servlet.FilterChain;
    import javax.servlet.FilterConfig;
    import javax.servlet.ServletException;
    import javax.servlet.ServletRequest;
    import javax.servlet.ServletResponse;
    import javax.servlet.http.Cookie;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    
    import com.cloud.sso.server.JVMCache;
    
    public class SSOServerFilter implements Filter {
    
        @Override
        public void destroy() {
        }
    
        @Override
        public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
            HttpServletRequest request = (HttpServletRequest) servletRequest;
            HttpServletResponse response = (HttpServletResponse) servletResponse;
            String service = request.getParameter("service");
            String ticket = request.getParameter("ticket");
            Cookie[] cookies = request.getCookies();
            String username = "";
            if (null != cookies) {
                for (Cookie cookie : cookies) {
                    if ("sso".equals(cookie.getName())) {
                        username = cookie.getValue();
                        break;
                    }
                }
            }
    
            if (null == service && null != ticket) {
                filterChain.doFilter(servletRequest, servletResponse);
                return;
            }
    
            if (null != username && !"".equals(username)) {
                long time = System.currentTimeMillis();
                String timeString = username + time;
                JVMCache.TICKET_AND_NAME.put(timeString, username);
                StringBuilder url = new StringBuilder();
                url.append(service);
                if (0 <= service.indexOf("?")) {
                    url.append("&");
                } else {
                    url.append("?");
                }
                url.append("ticket=").append(timeString);
                response.sendRedirect(url.toString());
            } else {
                filterChain.doFilter(servletRequest, servletResponse);
            }
        }
    
        @Override
        public void init(FilterConfig arg0) throws ServletException {
        }
    
    }

两个servlet:

LoginServlet.java

package com.cloud.sso.server.servlet;
    
    import java.io.IOException;
    
    import javax.servlet.ServletException;
    import javax.servlet.http.Cookie;
    import javax.servlet.http.HttpServlet;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    
    import com.cloud.sso.server.JVMCache;
    
    public class LoginServlet extends HttpServlet {
        private static final long serialVersionUID = -3170191388656385924L;
    
        @Override
        protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
            this.doPost(request, response);
        }
    
        @Override
        protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
            String username = request.getParameter("username");
            String password = request.getParameter("password");
            String service = request.getParameter("service");
    
            if ("cloud".equals(username) && "cloud".equals(password)) {
                Cookie cookie = new Cookie("sso", username);
                cookie.setPath("/");
                response.addCookie(cookie);
    
                long time = System.currentTimeMillis();
                String timeString = username + time;
                JVMCache.TICKET_AND_NAME.put(timeString, username);
    
                if (null != service) {
                    StringBuilder url = new StringBuilder();
                    url.append(service);
                    if (0 <= service.indexOf("?")) {
                        url.append("&");
                    } else {
                        url.append("?");
                    }
                    url.append("ticket=").append(timeString);
                    response.sendRedirect(url.toString());
                } else {
                    response.sendRedirect("/sso/index.jsp");
                }
            } else {
                response.sendRedirect("/sso/index.jsp?service=" + service);
            }
        }
    
    }

TicketServlet.java

package com.cloud.sso.server.servlet;
    
    import java.io.IOException;
    import java.io.PrintWriter;
    
    import javax.servlet.ServletException;
    import javax.servlet.http.HttpServlet;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    
    import com.cloud.sso.server.JVMCache;
    
    public class TicketServlet extends HttpServlet {
        private static final long serialVersionUID = 5964206637772848290L;
    
        @Override
        protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
            super.doGet(request, response);
        }
    
        @Override
        protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
            String ticket = request.getParameter("ticket");
            String username = JVMCache.TICKET_AND_NAME.get(ticket);
            JVMCache.TICKET_AND_NAME.remove(ticket);
            PrintWriter writer = response.getWriter();
            writer.write(username);
        }
    
    }

JVMCache.java

package com.cloud.sso.server;
    
    import java.util.HashMap;
    import java.util.Map;
    
    public class JVMCache {
    
        public static Map<String, String> TICKET_AND_NAME = new HashMap<String, String>();
    }

web.xml

<?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:jsp="http://java.sun.com/xml/ns/javaee/jsp" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
        <welcome-file-list>
            <welcome-file>index.jsp</welcome-file>
        </welcome-file-list>
    
        <filter>
            <filter-name>ssoServerFilter</filter-name>
            <filter-class>com.cloud.sso.server.filter.SSOServerFilter</filter-class>
        </filter>
        <filter-mapping>
            <filter-name>ssoServerFilter</filter-name>
            <url-pattern>/*</url-pattern>
        </filter-mapping>
    
        <servlet>
            <servlet-name>login</servlet-name>
            <servlet-class>com.cloud.sso.server.servlet.LoginServlet</servlet-class>
        </servlet>
        <servlet-mapping>
            <servlet-name>login</servlet-name>
            <url-pattern>/user/login</url-pattern>
        </servlet-mapping>
    
        <servlet>
            <servlet-name>ticket</servlet-name>
            <servlet-class>com.cloud.sso.server.servlet.TicketServlet</servlet-class>
        </servlet>
        <servlet-mapping>
            <servlet-name>ticket</servlet-name>
            <url-pattern>/ticket</url-pattern>
        </servlet-mapping>
    </web-app>

下面是OA系统中的代码：

pom.xml

（注意：端口为8082）

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
      <modelVersion>4.0.0</modelVersion>
      <groupId>com.cloud.sso.oa</groupId>
      <artifactId>sso-oa</artifactId>
      <packaging>war</packaging>
      <version>0.0.1-SNAPSHOT</version>
      <name>sso-oa Maven Webapp</name>
      <url>http://maven.apache.org</url>
      <dependencies>
          <dependency>
              <groupId>javax.servlet</groupId>
              <artifactId>servlet-api</artifactId>
              <version>2.5</version>
              <scope>provided</scope>
          </dependency>
          <dependency>
              <groupId>commons-httpclient</groupId>
              <artifactId>commons-httpclient</artifactId>
              <version>3.1</version> 
          </dependency>
      </dependencies>
      <build>
        <finalName>sso-oa</finalName>
        <plugins>
          <plugin>
              <groupId>org.mortbay.jetty</groupId>
              <artifactId>jetty-maven-plugin</artifactId>
              <version>8.1.9.v20130131</version>
              <configuration>
                  <stopKey>stop</stopKey>
                  <stopPort>6000</stopPort>
                  <webAppConfig>
                      <contextPath>/oa</contextPath>
                  </webAppConfig>
                  <scanIntervalSeconds>4</scanIntervalSeconds>
                  <connectors>
                      <connector implementation="org.eclipse.jetty.server.nio.SelectChannelConnector">
                          <port>8082</port>
                          <maxIdleTime>60000</maxIdleTime>
                      </connector>
                  </connectors>
              </configuration>
          </plugin>
        </plugins>
      </build>
    </project>

OA系统中的filter：

SSOClientFilter.java

package com.cloud.sso.oa.filter;
    
    import java.io.IOException;
    import java.net.URLEncoder;
    
    import javax.servlet.Filter;
    import javax.servlet.FilterChain;
    import javax.servlet.FilterConfig;
    import javax.servlet.ServletException;
    import javax.servlet.ServletRequest;
    import javax.servlet.ServletResponse;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    import javax.servlet.http.HttpSession;
    
    import org.apache.commons.httpclient.HttpClient;
    import org.apache.commons.httpclient.methods.PostMethod;
    
    public class SSOClientFilter implements Filter {
    
        @Override
        public void destroy() {
        }
    
        @Override
        public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
            HttpServletRequest request = (HttpServletRequest) servletRequest;
            HttpServletResponse response = (HttpServletResponse) servletResponse;
            HttpSession session = request.getSession();
            String username = (String) session.getAttribute("username");
            String ticket = request.getParameter("ticket");
            String url = URLEncoder.encode(request.getRequestURL().toString(), "UTF-8");
    
            if (null == username) {
                if (null != ticket && !"".equals(ticket)) {
                    PostMethod postMethod = new PostMethod("http://localhost:8081/sso/ticket");
                    postMethod.addParameter("ticket", ticket);
                    HttpClient httpClient = new HttpClient();
                    try {
                        httpClient.executeMethod(postMethod);
                        username = postMethod.getResponseBodyAsString();
                        postMethod.releaseConnection();
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                    if (null != username && !"".equals(username)) {
                        session.setAttribute("username", username);
                        filterChain.doFilter(request, response);
                    } else {
                        response.sendRedirect("http://localhost:8081/sso/index.jsp?service=" + url);
                    }
                } else {
                    response.sendRedirect("http://localhost:8081/sso/index.jsp?service=" + url);
                }
            } else {
                filterChain.doFilter(request, response);
            }
        }
    
        @Override
        public void init(FilterConfig arg0) throws ServletException {
        }
    
    }

OAServlet.java

package com.cloud.sso.oa.servlet;
    
    import java.io.IOException;
    
    import javax.servlet.ServletException;
    import javax.servlet.http.HttpServlet;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    
    public class OAServlet extends HttpServlet {
        private static final long serialVersionUID = 3615122544373006252L;
    
        @Override
        protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
            request.getRequestDispatcher("/WEB-INF/jsp/welcome.jsp").forward(request, response);
        }
    
        @Override
        protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
            this.doGet(request, response);
        }
    
        
    }

web.xml

<?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:jsp="http://java.sun.com/xml/ns/javaee/jsp" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
        <welcome-file-list>
            <welcome-file>index.jsp</welcome-file>
        </welcome-file-list>
    
        <filter>
            <filter-name>ssoClientFilter</filter-name>
            <filter-class>com.cloud.sso.oa.filter.SSOClientFilter</filter-class>
        </filter>
        <filter-mapping>
            <filter-name>ssoClientFilter</filter-name>
            <url-pattern>/*</url-pattern>
        </filter-mapping>
    
        <servlet>
            <servlet-name>list</servlet-name>
            <servlet-class>com.cloud.sso.oa.servlet.OAServlet</servlet-class>
        </servlet>
        <servlet-mapping>
            <servlet-name>list</servlet-name>
            <url-pattern>/list</url-pattern>
        </servlet-mapping>
    </web-app>

下面是PRO系统的代码：

pom.xml

（注意：端口为8083）

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
      xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
      <modelVersion>4.0.0</modelVersion>
      <groupId>com.cloud.sso.pro</groupId>
      <artifactId>sso-pro</artifactId>
      <packaging>war</packaging>
      <version>0.0.1-SNAPSHOT</version>
      <name>sso-pro Maven Webapp</name>
      <url>http://maven.apache.org</url>
      <dependencies>
        <dependency>
              <groupId>javax.servlet</groupId>
              <artifactId>servlet-api</artifactId>
              <version>2.5</version>
              <scope>provided</scope>
          </dependency>
          <dependency>
              <groupId>commons-httpclient</groupId>
              <artifactId>commons-httpclient</artifactId>
              <version>3.1</version> 
          </dependency>
      </dependencies>
      <build>
        <finalName>sso-pro</finalName>
        <plugins>
          <plugin>
              <groupId>org.mortbay.jetty</groupId>
              <artifactId>jetty-maven-plugin</artifactId>
              <version>8.1.9.v20130131</version>
              <configuration>
                  <stopKey>stop</stopKey>
                  <stopPort>6000</stopPort>
                  <webAppConfig>
                      <contextPath>/pro</contextPath>
                  </webAppConfig>
                  <scanIntervalSeconds>4</scanIntervalSeconds>
                  <connectors>
                      <connector implementation="org.eclipse.jetty.server.nio.SelectChannelConnector">
                          <port>8083</port>
                          <maxIdleTime>60000</maxIdleTime>
                      </connector>
                  </connectors>
              </configuration>
          </plugin>
        </plugins>
      </build>
    </project>

PRO系统中的filter

SSOClientFilter.java

package com.cloud.sso.pro.filter;
    
    import java.io.IOException;
    import java.net.URLEncoder;
    
    import javax.servlet.Filter;
    import javax.servlet.FilterChain;
    import javax.servlet.FilterConfig;
    import javax.servlet.ServletException;
    import javax.servlet.ServletRequest;
    import javax.servlet.ServletResponse;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    import javax.servlet.http.HttpSession;
    
    import org.apache.commons.httpclient.HttpClient;
    import org.apache.commons.httpclient.methods.PostMethod;
    
    public class SSOClientFilter implements Filter {
    
        @Override
        public void destroy() {
        }
    
        @Override
        public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
            HttpServletRequest request = (HttpServletRequest) servletRequest;
            HttpServletResponse response = (HttpServletResponse) servletResponse;
            HttpSession session = request.getSession();
            String username = (String) session.getAttribute("username");
            String ticket = request.getParameter("ticket");
            String url = URLEncoder.encode(request.getRequestURL().toString(), "UTF-8");
    
            if (null == username) {
                if (null != ticket && !"".equals(ticket)) {
                    PostMethod postMethod = new PostMethod("http://localhost:8081/sso/ticket");
                    postMethod.addParameter("ticket", ticket);
                    HttpClient httpClient = new HttpClient();
                    try {
                        httpClient.executeMethod(postMethod);
                        username = postMethod.getResponseBodyAsString();
                        postMethod.releaseConnection();
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                    if (null != username && !"".equals(username)) {
                        session.setAttribute("username", username);
                        filterChain.doFilter(request, response);
                    } else {
                        response.sendRedirect("http://localhost:8081/sso/index.jsp?service=" + url);
                    }
                } else {
                    response.sendRedirect("http://localhost:8081/sso/index.jsp?service=" + url);
                }
            } else {
                filterChain.doFilter(request, response);
            }
        }
    
        @Override
        public void init(FilterConfig arg0) throws ServletException {
        }
    
    }

ProServlet.java

package com.cloud.sso.pro.servlet;
    
    import java.io.IOException;
    
    import javax.servlet.ServletException;
    import javax.servlet.http.HttpServlet;
    import javax.servlet.http.HttpServletRequest;
    import javax.servlet.http.HttpServletResponse;
    
    public class ProServlet extends HttpServlet {
        private static final long serialVersionUID = -1334093914490423930L;
    
        @Override
        protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
            request.getRequestDispatcher("/WEB-INF/jsp/welcome.jsp").forward(request, response);
        }
    
        @Override
        protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
            super.doPost(request, response);
        }
    
    }

web.xml

<?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:jsp="http://java.sun.com/xml/ns/javaee/jsp" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
        <welcome-file-list>
            <welcome-file>index.jsp</welcome-file>
        </welcome-file-list>
    
        <filter>
            <filter-name>ssoClientFilter</filter-name>
            <filter-class>com.cloud.sso.pro.filter.SSOClientFilter</filter-class>
        </filter>
        <filter-mapping>
            <filter-name>ssoClientFilter</filter-name>
            <url-pattern>/*</url-pattern>
        </filter-mapping>
    
        <servlet>
            <servlet-name>list</servlet-name>
            <servlet-class>com.cloud.sso.pro.servlet.ProServlet</servlet-class>
        </servlet>
        <servlet-mapping>
            <servlet-name>list</servlet-name>
            <url-pattern>/list</url-pattern>
        </servlet-mapping>
    </web-app>

运行结果：

1：分别启动这三个工程。

2：访问OA系统，URL：http://localhost:8082/oa/list

3：这样到登录页面，如图：

![035b040f-fb03-37e2-8bda-3b93521cd233.png][]

4：用户名为：cloud，密码为：cloud，点击登录则会显示，如图：

![b5eeb428-16d5-3a25-bdc8-04f67c41772f.png][]

5：然后去进入PRO系统，URL：http://localhost:8083/pro/list，则就不需要登录了，直接进入，如图：

![6e25bd16-13cc-3b24-93d1-37cc6fe4bbdf.png][]

工程源代码供下载：

*  本文附件下载:
 *  [sso-source.zip][] (62.1 KB)

[0577dd49-c12b-3a06-b8a0-a1210f14c324.png]: /images/20220717/eacf16cdc54648e8a6524e472728f05c.png
[3e4b6f40-7eb1-3a2a-bc5c-00c2aa168173.png]: /images/20220717/da4a952e5eed492dbefb72e4f614a741.png
[e8f0df56-00c0-3856-b4c8-c8cc5e39d209.png]: /images/20220717/b335a4d2fa2f491a8aac6082fb4750d4.png
[035b040f-fb03-37e2-8bda-3b93521cd233.png]: /images/20220717/d14e9c17eb334f18a8286608459b6381.png
[b5eeb428-16d5-3a25-bdc8-04f67c41772f.png]: /images/20220717/29be32b7e0b14851aa84ca9e9e470950.png
[6e25bd16-13cc-3b24-93d1-37cc6fe4bbdf.png]: /images/20220717/96dafd541b7b404e9a9f4dbf1d92bc65.png
[sso-source.zip]: http://dl.iteye.com/topics/download/50d7ecf9-a49e-3b02-8291-82a58a8c519c