spring mvc注解实现

此例子由网络收集并进行压缩，其他 hibernate 支持需要自己实现。是最简约的mvc实现

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>

<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>

spring-servlet.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
        xmlns:context="http://www.springframework.org/schema/context"
   xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
       http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
       http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
       http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">

<context:annotation-config />
       
      <context:component-scan base-package="controllers" />

      <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />

       
       <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"
          p:prefix="/WEB-INF/view/" p:suffix=".jsp" />

       <bean id="multipartResolver"
          class="org.springframework.web.multipart.commons.CommonsMultipartResolver"
          p:defaultEncoding="utf-8" />
</beans>

controller

package controllers;

import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;

//import com.mvc.entity.Student;
//import com.mvc.service.StudentService;

@Controller
@RequestMapping("/student.do")
public class StudentController {
    protected final transient Log log = LogFactory
    .getLog(StudentController.class);

//    @Autowired
//    private StudentService studentService;

    public StudentController(){

    }

    @RequestMapping
    public String load(ModelMap modelMap){
//        List<Object> list = studentService.getStudentList();
//        modelMap.put("list", list);
        return "student";
    }

    @RequestMapping(params = "method=add")
    public String add(HttpServletRequest request, ModelMap modelMap) throws Exception{
        return "student_add";
    }

    @RequestMapping(params = "method=save")
    public String save(HttpServletRequest request, ModelMap modelMap){
        String user = request.getParameter("user");
        String psw = request.getParameter("psw");
//        Student st = new Student();
//        st.setUser(user);
//        st.setPsw(psw);
        try{
//            studentService.save(st);
            modelMap.put("addstate", "添加成功");
        }
        catch(Exception e){
            log.error(e.getMessage());
            modelMap.put("addstate", "添加失败");
        }

        return "student_add";
    }

    @RequestMapping(params = "method=del")
    public void del(@RequestParam("id") String id, HttpServletResponse response){
        try{
//            Student st = new Student();
//            st.setId(Integer.valueOf(id));
//            studentService.delete(st);
            response.getWriter().print("{\"del\":\"true\"}");
        }
        catch(Exception e){
            log.error(e.getMessage());
            e.printStackTrace();
        }
    }
}

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