SpringMVC代码复制版

Lib目录

Java目录

HelloController文件代码

import org.springframework.web.servlet.ModelAndView;

import org.springframework.web.servlet.mvc.Controller;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

public class HelloController implements Controller {

    public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response)

            throws Exception {

        System.out.println("Hello SpringMVC");

        String name = request.getParameter("name");

        System.out.println(name);

        // 设置参数,回显到页面

//        request.setAttribute("msg", "今天下雨了");

//        request.getRequestDispatcher("/hello.jsp").forward(request, response);

        ModelAndView mv = new ModelAndView();

        mv.addObject("msg", "今天下雨了");

        mv.setViewName("/hello.jsp");

        return mv;

    }

}

AnotationController文件代码

import org.springframework.stereotype.Controller;

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

import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.servlet.http.HttpSession;

@Controller

public class AnotationController {

    @RequestMapping(value = "/method")

    public ModelAndView method(HttpServletRequest request, HttpServletResponse response)

            throws Exception {

        System.out.println("method");

        return null;

    }

    @RequestMapping(value = "/method2")

    public ModelAndView method2(HttpServletResponse response)

            throws Exception {

        System.out.println("method2");

        return null;

    }

    @RequestMapping(value = "/method3")

    public ModelAndView method3(HttpServletResponse response, HttpSession session)

            throws Exception {

        System.out.println("method3");

        return null;

    }

    @RequestMapping(value = "/method4")

    public ModelAndView method4(HttpSession session)

            throws Exception {

        System.out.println("method4");

        System.out.println(session);

        ModelAndView mv = new ModelAndView();

        mv.setViewName("/hello.jsp");

        return mv;

    }

    @RequestMapping(value = "/method5")

    public ModelAndView method5(String name)

            throws Exception {

        System.out.println(name);

        ModelAndView mv = new ModelAndView();

        mv.setViewName("/hello.jsp");

        return mv;

    }

}

DataController文件代码

import com.xmg.domain.User;

import org.springframework.stereotype.Controller;

import org.springframework.ui.Model;

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

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

import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import java.util.Date;

@Controller

public class DataController {

    // 通过原始方式

    @RequestMapping("/data1")

    public ModelAndView data1(HttpServletResponse response, HttpServletRequest request) {

        request.setAttribute("msg","下午出太阳了");

        ModelAndView mv = new ModelAndView();

        mv.setViewName("hello.jsp");

        return null;

    }

    // 通过通过ModelAndView addObject方式

    @RequestMapping("/data2")

    public ModelAndView data2() {

        System.out.println("data2");

        ModelAndView mv = new ModelAndView();

//        Map<String, String> map = new HashMap<>();

//        map.put("msg","明天不打球");

//        map.put("success","true");

//        mv.addAllObjects(map);

        mv.addObject("后天放假"); //默认的key：类型的全小写

        mv.addObject(new Date());

        mv.setViewName("hello.jsp");

        return null;

    }

    // 直接返回对象

    @RequestMapping("/data3")

    @ModelAttribute("msg")

    public User data3() {

        // 如果没有ModelAndView和response

        // 返回结果会找视图解析器 前缀+请求名+后缀

        return new User("xx","123");

    }

    @RequestMapping("/data4")

    public String data4() {

        System.out.println("data4");

        return "show";

    }

    @RequestMapping("/data5")

    public String data5(Model model) {

        System.out.println("data5");

        model.addAttribute("msg","等会休息一下");

        return "show";

    }

    @RequestMapping("/data6")

    public String data6() {

        System.out.println("data6");

        return "forward:show.jsp";

    }

    @RequestMapping("/data7")

    public String data7() {

        System.out.println("data7");

        return "redirect:show.jsp";

    }

}

ValueController文件代码

import com.xmg.domain.User;

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.RequestParam;

import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

@Controller

public class ValueController {

    // 1.通过最原始的方式来进行传值

    @RequestMapping("/value1")

    public ModelAndView value1(HttpServletRequest request, HttpServletResponse response) {

        System.out.println("value1");

        String name = request.getParameter("name");

        String password = request.getParameter("password");

        User user = new User(name, password);

        System.out.println(user);

        ModelAndView modelAndView = new ModelAndView();

        modelAndView.setViewName("/value.jsp");

        return modelAndView;

    }

    // 前台和后台传参

    @RequestMapping("/value2")

    public ModelAndView value2(String name, String password) {

        System.out.println("value2");

        User user = new User(name, password);

        System.out.println(user);

        ModelAndView modelAndView = new ModelAndView();

        modelAndView.setViewName("/value.jsp");

        return modelAndView;

    }

    // 前台和后台传参

    @RequestMapping("/value3")

    public ModelAndView value3(@RequestParam("name11") String name, String password) {

        System.out.println("value3");

        User user = new User(name, password);

        System.out.println(user);

        ModelAndView modelAndView = new ModelAndView();

        modelAndView.setViewName("/value.jsp");

        return modelAndView;

    }

    // 对象传参方式

    @RequestMapping("/value4")

    public ModelAndView value4(User u) {

        System.out.println("value4");

        System.out.println(u);

        ModelAndView modelAndView = new ModelAndView();

        modelAndView.setViewName("/value.jsp");

        return modelAndView;

    }

    // 地址栏传参

    @RequestMapping("/value5/{id}")

    public ModelAndView value5(@PathVariable("id")Long id) {

        System.out.println("value5");

        System.out.println(id);

        ModelAndView modelAndView = new ModelAndView();

        modelAndView.setViewName("/value.jsp");

        return modelAndView;

    }

}

FileController文件代码

import org.apache.commons.io.IOUtils;

import org.springframework.stereotype.Controller;

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

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

import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletResponse;

import java.io.*;

import java.util.UUID;

@Controller

public class FileController {

    @RequestMapping("/upload")

    public void upload(MultipartFile file) {

        FileOutputStream fos = null;

        try {

            String lastName = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf("."));

            String fileName = UUID.randomUUID().toString();

            InputStream fis = file.getInputStream();

            fos = new FileOutputStream("D:\\file\\" + fileName);

            IOUtils.copy(fis, fos);

        } catch (Exception e) {

            e.printStackTrace();

        } finally {

            if (fos != null) {

                try {

                    fos.close();

                } catch (Exception e) {

                    e.printStackTrace();

                }

            }

        }

    }

    @RequestMapping("/downLoad")

    @ResponseBody //代表这次请求全部交给response来做处理

    public void DownLoad(HttpServletResponse response) {

        FileInputStream fis = null;

        try {

            // 设置下载头

            response.setHeader("Content-Disposition", "attachment;filename=" +

                    new String("三个小明".getBytes("UTF-8"), "iso8859-1") + ".jpg");

            File file = new File("D:\\file\\a.jpg");

            fis = new FileInputStream(file);

            OutputStream os = response.getOutputStream();

            IOUtils.copy(fis, os);

        } catch (Exception e) {

            e.printStackTrace();

        } finally {

            if (fis != null) {

                try {

                    fis.close();

                } catch (IOException e) {

                    e.printStackTrace();

                }

            }

        }

    }

}

DemoInterceptor文件代码

import org.springframework.web.servlet.HandlerInterceptor;

import org.springframework.web.servlet.ModelAndView;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

public class DemoInterceptor implements HandlerInterceptor {

    // 在调用控制器方法之前

    public boolean preHandle(HttpServletRequest request, HttpServletResponse response,

                             Object o) throws Exception {

        System.out.println("DemoInterceptor.preHandle()");

        // 如果返回false为拦截这个请求

        return false;

    }

    // 在调用控制器方法之后,视图渲染之前

    public void postHandle(HttpServletRequest request, HttpServletResponse response,

                           Object o, ModelAndView modelAndView) throws Exception {

        System.out.println("DemoInterceptor.postHandle()");

    }

    // 视图渲染之后

    public void afterCompletion(HttpServletRequest request, HttpServletResponse response,

                                Object o, Exception e) throws Exception {

        System.out.println("DemoInterceptor.afterCompletion()");

    }

}

resources目录

application.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:context="http://www.springframework.org/schema/context"

       xmlns:aop="http://www.springframework.org/schema/aop"

       xmlns:p="http://www.springframework.org/schema/p"

       xmlns:jee="http://www.springframework.org/schema/jee"

       xmlns:tx="http://www.springframework.org/schema/tx"

       xmlns:mvc="http://www.springframework.org/schema/mvc"

       xsi:schemaLocation="

            http://www.springframework.org/schema/beans

            http://www.springframework.org/schema/beans/spring-beans.xsd

            http://www.springframework.org/schema/context

            http://www.springframework.org/schema/context/spring-context.xsd

            http://www.springframework.org/schema/jee

            http://www.springframework.org/schema/jee/spring-jee.xsd

            http://www.springframework.org/schema/aop

            http://www.springframework.org/schema/aop/spring-aop.xsd

            http://www.springframework.org/schema/tx

            http://www.springframework.org/schema/tx/spring-tx.xsd

            http://www.springframework.org/schema/mvc

            http://www.springframework.org/schema/mvc/spring-mvc.xsd">

<!--    <bean name="/hello" class="com.xmg.HelloController"/>-->

<!--    <bean class="com.xmg.AnotationController"/>-->

    <!-- 添加对静态资源的支持 -->

<!--    <mvc:default-servlet-handler />-->

    <!-- 开启扫描 -->

    <context:component-scan base-package="com.xmg" />

    <!-- 添加对SpringMVC的注解支持 -->

    <mvc:annotation-driven/>

    <!-- 对静态资源的支持 -->

    <mvc:default-servlet-handler />

    <!-- 配置视图解析器 -->

    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" >

        <property name="prefix" value="/WEB-INF/view/" />

        <property name="suffix" value=".jsp" />

    </bean>

    <!-- 配置上传文件的bean -->

    <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver" >

        <!-- 设置上传文件的最大尺寸为1MB -->

        <property name="maxUploadSize" value="#{1024*1024}"/>

    </bean>

    <!-- 配置拦截器 -->

    <mvc:interceptors>

        <mvc:interceptor>

            <mvc:mapping path="/show.jsp"/>

            <bean class="com.xmg.DemoInterceptor" />

        </mvc:interceptor>

    </mvc:interceptors>

</beans>

Webapp目录

hello.jsp文件

<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<%@ page isELIgnored="false"%>

<html>

<head>

    <title>Title</title>

</head>

<body>

回显的参数

${msg}

${success}

${string}

${date}

</body>

</html>

Show.jsp文件

<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<%@ page isELIgnored="false"%>

<html>

<head>

    <title>Title</title>

</head>

<body>

${msg}

</body>

</html>

Value.jsp文件

<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<html>

<head>

    <title>Title</title>

</head>

<body>

<fieldset>

    <legend>用户注册-原始方式</legend>

<form action="/value1" method="post" >

    <table>

        <tr>

            <td>用户名</td>

            <td><input type="text" name="name"></td>

        </tr>

        <tr>

            <td>密码</td>

            <td><input type="text" name="password"></td>

        </tr>

        <tr>

            <td colspan="2"><input type="submit" value="提交"></td>

        </tr>

    </table>

</form>

</fieldset>

<fieldset>

    <legend>用户注册-原始方式-参数名对应前台名称</legend>

    <form action="/value2" method="post" >

        <table>

            <tr>

                <td>用户名</td>

                <td><input type="text" name="name"></td>

            </tr>

            <tr>

                <td>密码</td>

                <td><input type="text" name="password"></td>

            </tr>

            <tr>

                <td colspan="2"><input type="submit" value="提交"></td>

            </tr>

        </table>

    </form>

</fieldset>

<fieldset>

    <legend>用户注册-原始方式-参数名对应前台名称</legend>

    <form action="/value3" method="post" >

        <table>

            <tr>

                <td>用户名</td>

                <td><input type="text" name="name11"></td>

            </tr>

            <tr>

                <td>密码</td>

                <td><input type="text" name="password"></td>

            </tr>

            <tr>

                <td colspan="2"><input type="submit" value="提交"></td>

            </tr>

        </table>

    </form>

</fieldset>

<fieldset>

    <legend>用户注册-对象传参</legend>

    <form action="/value4" method="post" >

        <table>

            <tr>

                <td>用户名</td>

                <td><input type="text" name="name"></td>

            </tr>

            <tr>

                <td>密码</td>

                <td><input type="text" name="password"></td>

            </tr>

            <tr>

                <td colspan="2"><input type="submit" value="提交"></td>

            </tr>

        </table>

    </form>

</fieldset>

</body>

</html>

Upload.jsp文件

<%@ page contentType="text/html;charset=UTF-8" language="java" %>

<html>

<head>

    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

    <title>文件上传</title>

</head>

<body>

<fieldset>

    <legend>文件上传</legend>

    <form action="/upload" method="post" enctype="multipart/form-data">

        <input type="file" name="file">

        <input type="submit" value="提交">

    </form>

</fieldset>

</body>

</html>

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