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>