/**

      * 拦截所有请求：

      * @RequestMapping(value="/*", method = {RequestMethod.GET})

      * http://localhost:8080/SpringMVCTag/helloworld/xd

      */

     //@AuthPassport

     @RequestMapping(value="/*", method = {RequestMethod.GET})

     public ModelAndView urlTest(){

         ModelAndView modelAndView = new ModelAndView();

         //跳转到 urltest.jsp或者其他后缀的页面，这个要看springmvc的配置文件里是怎么设置的，

         modelAndView.setViewName("urltest");

         return modelAndView;

     }

 /**

      * 拦截多种请求

      *  如： @RequestMapping(value={"/index","/hello"})

      *  访问URL:http://localhost:8080/SpringMVCTag/helloworld/index

      * @return

      * @throws SQLException

      */

     //@AuthPassport

     @RequestMapping(value={"/index","/hello"})

     public ModelAndView index() throws SQLException{

         //throw new SQLException("数据库异常。");

         ModelAndView modelAndView = new ModelAndView();

         //在jsp中可以通过 ${message} 的形式来获取绑定的值

         modelAndView.addObject("message", "Hello World!");

         modelAndView.setViewName("index");

         return modelAndView;

     }

 /**

      * @RequestMapping 结合 @PathVariable 注解可以获取URL中带占位的那个参数值，

      * 具体到这个例子中，在方法名中Integer id这个入参的值就是URL中的值，

      * 假如URL为：

      * http://localhost:8080/SpringMVCTag/helloworld/detail/yangdandan

      * 那么在跳转到的detail.jsp中通过

      * ${cxrr}的形式就可以获取到 yangdandan 这个字符串

      * @param id

      * @return

      */

     @RequestMapping(value="/detail/{thepara}", method = {RequestMethod.GET})

     public ModelAndView getDetail(@PathVariable(value="thepara") String thepara){

         ModelAndView modelAndView = new ModelAndView();

         modelAndView.addObject("crxx", thepara);

         modelAndView.setViewName("detail");

         return modelAndView;

     }

 package com.demo.web.controllers;

 import java.sql.SQLException;

 import javax.servlet.http.HttpServletRequest;

 import org.springframework.web.bind.annotation.ExceptionHandler;

 /**

  *

  * @author Wei

  * @time  2017年4月20日 下午3:56:51

  */

 public abstract class BaseController {  

     @ExceptionHandler

     public String exception(HttpServletRequest request, Exception e) {  

         request.setAttribute("exceptionMessage", e.getMessage());  

         // 根据不同的异常类型进行不同处理

         if(e instanceof SQLException)

             return "testerror";

         else

             return "error";

     }  

 }  

 package com.demo.web.controllers;

 import java.sql.SQLException;

 import org.springframework.stereotype.Controller;

 import org.springframework.web.bind.annotation.PathVariable;

 import org.springframework.web.bind.annotation.RequestMapping;

 import org.springframework.web.bind.annotation.RequestMethod;

 import org.springframework.web.servlet.ModelAndView;

 /**

  *

  * @author Wei

  * @time  2017年4月20日 下午4:56:43

  */

 @Controller

 @RequestMapping(value = "/helloworld")

 public class HelloWorldController extends BaseController {

     /**

      * 拦截所有请求：

      * @RequestMapping(value="/*", method = {RequestMethod.GET})

      * http://localhost:8080/SpringMVCTag/helloworld/xd

      */

     //@AuthPassport

     @RequestMapping(value="/*", method = {RequestMethod.GET})

     public ModelAndView urlTest(){

         ModelAndView modelAndView = new ModelAndView();

         //跳转到 urltest.jsp或者其他后缀的页面，这个要看springmvc的配置文件里是怎么设置的，

         modelAndView.setViewName("urltest");

         return modelAndView;

     }

     /**

      * 拦截多种请求

      *  如： @RequestMapping(value={"/index","/hello"})

      *  访问URL:http://localhost:8080/SpringMVCTag/helloworld/index

      * @return

      * @throws SQLException

      */

     //@AuthPassport

     @RequestMapping(value={"/index","/hello"})

     public ModelAndView index() throws SQLException{

         //throw new SQLException("数据库异常。");

         ModelAndView modelAndView = new ModelAndView();

         //在jsp中可以通过 ${message} 的形式来获取绑定的值

         modelAndView.addObject("message", "Hello World!");

         modelAndView.setViewName("index");

         return modelAndView;

     }

     /**

      * @RequestMapping 结合 @PathVariable 注解可以获取URL中带占位的那个参数值，

      * 具体到这个例子中，在方法名中Integer id这个入参的值就是URL中的值，

      * 假如URL为：

      * http://localhost:8080/SpringMVCTag/helloworld/detail/yangdandan

      * 那么在跳转到的detail.jsp中通过

      * ${cxrr}的形式就可以获取到 yangdandan 这个字符串

      * @param id

      * @return

      */

     @RequestMapping(value="/detail/{thepara}", method = {RequestMethod.GET})

     public ModelAndView getDetail(@PathVariable(value="thepara") String thepara){

         ModelAndView modelAndView = new ModelAndView();

         modelAndView.addObject("crxx", thepara);

         modelAndView.setViewName("detail");

         return modelAndView;

     }

     @RequestMapping(value="/reg/{name:\\w+}-{age:\\d+}", method = {RequestMethod.GET})

     public ModelAndView regUrlTest(@PathVariable(value="name") String name, @PathVariable(value="age") Integer age){

         ModelAndView modelAndView = new ModelAndView();

         modelAndView.addObject("name", name);

         modelAndView.addObject("age", age);

         modelAndView.setViewName("regurltest");

         return modelAndView;

     }

     @RequestMapping(value="/paramstest", params="example!=AAA", method = {RequestMethod.GET})

     public ModelAndView paramsTest(){

         ModelAndView modelAndView = new ModelAndView();

         modelAndView.setViewName("paramstest");

         return modelAndView;

     }

 }