去掉shiro登录时url里的JSESSIONID https://blog.csdn.net/aofavx/article/details/51701012

经过查找论坛和分析源码，确认了是在ShiroHttpServletResponse里加上的。

因此继承ShiroHttpServletResponse类，覆盖相应方法，再重写 ShiroFilterFactoryBean就可以把添加JSESSIONID部分去掉。

    重写ShiroHttpServletResponse
    Java代码

public class MyShiroHttpServletResponse extends ShiroHttpServletResponse {
    public MyShiroHttpServletResponse(HttpServletResponse wrapped,ServletContext context, ShiroHttpServletRequest request) {
        super(wrapped, context, request);
    }
    @Override
    protected String toEncoded(String url, String sessionId) {
        if ((url == null) || (sessionId == null))
            return (url);
        String path = url;
        String query = "";
        String anchor = "";
        int question = url.indexOf('?');
        if (question >= 0) {
            path = url.substring(0, question);
            query = url.substring(question);
        }
        int pound = path.indexOf('#');
        if (pound >= 0) {
            anchor = path.substring(pound);
            path = path.substring(0, pound);
        }
        StringBuilder sb = new StringBuilder(path);
        //重写toEncoded方法，注释掉这几行代码就不会再生成JESSIONID了。
//        if (sb.length() > 0) { // session id param can't be first.
//            sb.append(";");
//            sb.append(DEFAULT_SESSION_ID_PARAMETER_NAME);
//            sb.append("=");
//            sb.append(sessionId);
//        }
        sb.append(anchor);
        sb.append(query);
        return (sb.toString());
    }
}

2.扩展ShiroFilterFactoryBean, 使用新建的MyShiroHttpServletResponse。

Java代码

public class MyShiroFilterFactoryBean extends ShiroFilterFactoryBean { 

    @Override
      public Class getObjectType() {
        return MySpringShiroFilter.class;
      } 

    @Override
    protected AbstractShiroFilter createInstance() throws Exception {

        SecurityManager securityManager = getSecurityManager();
        if (securityManager == null) {
            String msg = "SecurityManager property must be set.";
            throw new BeanInitializationException(msg);
        }

        if (!(securityManager instanceof WebSecurityManager)) {
            String msg = "The security manager does not implement the WebSecurityManager interface.";
            throw new BeanInitializationException(msg);
        }
        FilterChainManager manager = createFilterChainManager();

        PathMatchingFilterChainResolver chainResolver = new PathMatchingFilterChainResolver();
        chainResolver.setFilterChainManager(manager);

        return new MySpringShiroFilter((WebSecurityManager) securityManager, chainResolver);
    }

    private static final class MySpringShiroFilter extends AbstractShiroFilter {  

        protected MySpringShiroFilter(WebSecurityManager webSecurityManager, FilterChainResolver resolver) {
          super();
          if (webSecurityManager == null) {
            throw new IllegalArgumentException("WebSecurityManager property cannot be null.");
          }
          setSecurityManager(webSecurityManager);
          if (resolver != null) {
            setFilterChainResolver(resolver);
          }
        }  

        @Override
        protected ServletResponse wrapServletResponse(HttpServletResponse orig, ShiroHttpServletRequest request) {
          return new MyShiroHttpServletResponse(orig, getServletContext(), request);
        }
    }
}

3.在shiro相关配置里替换成自己的MyShiroFilterFactoryBean（嗯，我是shiro和spring组合用的)

    <!-- Shiro的Web过滤器 -->
    <bean id="shiroFilter" class="com.jsnr.aws.web.shiro.spring.MyShiroFilterFactoryBean">
        <property name="securityManager" ref="securityManager"/>
        <property name="loginUrl" value="/login.jsp"/>
         <property name="unauthorizedUrl" value="/unauthorized.jsp"/>

 .....
 </bean>