Spring MVC技术之【上机】

1.【上机】配置mvc环境

2.【上机】使用注解的方式实现Spring MVC的参数的传递(页面上传入和传出)

<?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:mvc="http://www.springframework.org/schema/mvc"
    xsi:schemaLocation="http://www.springframework.org/schema/beans 
        http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
        http://www.springframework.org/schema/context 
        http://www.springframework.org/schema/context/spring-context-4.3.xsd
        http://www.springframework.org/schema/mvc 
        http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd">

        <!-- 1.配置注解 -->
        <context:annotation-config></context:annotation-config>
        <context:component-scan base-package="renjiale"></context:component-scan>
        
        <!-- 2.MVC的注解配动 -->
        <mvc:annotation-driven></mvc:annotation-driven>
        <!-- 3.配置viewresovler视图处理器 -->
            <!-- rest风格: http://域名/index.jsp -->
        <bean id="myspringmvc" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <property name="prefix" value="/"></property>
            <property name="suffix" value=".jsp" ></property>
                <!-- 根据前缀和后缀找到对应的页面,OK -->
        </bean>
        <!-- 4. 编写代码-->
        <!-- 5.配置dispatcherServlet(MVC)自动配置;在web.xml配置servlet -->
        <!-- 6.编写servlet -->
        <bean id="dispatcherServlet" class="org.springframework.web.servlet.DispatcherServlet"></bean>
        <!-- 7.编写测试代码-jsp页面 -->
        <!-- 8.MVC处理请求,编写业务类 -->
        <!-- 9. 当在.jsp点击请求,让业务类中的方法来处理请求 -->
        <!-- 10.controller使用注解实现控制器 -->
        <!-- 11.jsp请求找多个业务类 @RequestMapping  找对应的方法@RequestMapping-->
        <!-- 12.请求后.jsp页面跳转到指定地方 -->
</beans>
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
  <display-name>web_cookie</display-name>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>

    <servlet>
        <servlet-name>mvc01</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>mvc01</servlet-name>
        <!-- 注: 所有请求MVC来处理 -->
        <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>
<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
    <h1>这里是index.jsp页面</h1>
    <a href="mav/show">测试</a>
        <!-- MVC处理请求 -->
</body>
</html>
<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
    <h1>这里是sucess页面</h1>
</body>
</html>

 

package renjiale.controller;
import java.io.UnsupportedEncodingException;

import javax.servlet.http.HttpServletRequest;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;


@Controller
@RequestMapping("/mvc")
public class MyFormMVC {
    @RequestMapping(value="show")
    public ModelAndView show() {
        System.out.println("show方法执行了");
        ModelAndView mav = new ModelAndView();
        mav.setViewName("suc");
        return mav;
    }
    /*@RequestMapping(value="way2")
    public String show2(@RequestParam(value="msg")String myMsg,@RequestParam(value="str")String mystr) {
        System.out.println("show2()方法执行了............");
        System.out.println("从页面上接收到的信息:"+"msg:"+myMsg+",mystr:"+mystr);
        return "suc";
    }*/
    /*@RequestMapping(value="show2")
    public String show2(String msg,String str) {
        System.out.println("从页面上接收到的信息:"+"msg:"+msg+",mystr:"+str);
        return "suc";
    }*/
    
    @RequestMapping(value="show2")
    public String show2(HttpServletRequest request,Model model) {
        String msg = request.getParameter("msg");
        String str = request.getParameter("str");
        System.out.println("从页面上接收到的信息:"+"msg:"+msg+",mystr:"+str);
        //处理完请求, 如何把参数传回到页面
        //数据返回到页面
        
        String reply =str +"myspringmvc"; 
        
         //把数据信息传到 suc.jsp页面上
        request.setAttribute("reply", reply);
        
        
        //MVC更简洁的方式传递参数
        model.addAttribute("str",reply);
        return "suc";
    }
    
}

 

3.【上机】实现Spring MVC注册实现和过程中的一些问题

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
    <h1>是注册页面</h1>
    <!-- get方式是地址栏信息提交 -->
    <!-- http://localhost:8080/Spirng_mvc_form/mvc/reg?username=renjiale&pwd=123456&confirmpwd=123456&realname=%E4%BB%BB%E5%AE%B6%E4%B9%90 -->
    <form action="mvc/reg" method="get">
        用户名: <input type="text" name="username" value="renjiale"><br/>
        密码:<input type="password" name="pwd" value="123456"><br/>
        确认密码:<input type="text" name="confirmpwd" value="123456"><br/>
        真实姓名:<input type="text" name="realname" value="任家乐"><br/>
        <input type="submit" value="注 册">
    </form>
</body>
</html>
package renjiale.controller;
import java.io.UnsupportedEncodingException;

/** 
 *    1. 页面上 post请求-get (HTTP Status 405 – Method Not Allowed)
 *     2. post - method=RequestMethod.POST 可以
 *     3. get - method=RequestMethod.GET 可以
    
        乱码:
              1.filter过滤器
              2.get方式
                  a.new String
                  b.connector-port
 * 
 */
import javax.servlet.http.HttpServletRequest;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;

import renjiale.pojo.Users;

@Controller
@RequestMapping("/mvc")
public class MyFormMVC {
    
    @RequestMapping(value="reg", method=RequestMethod.GET)
    public String registerMethod(Users users,HttpServletRequest request) {
        System.out.println("注册方法执行了");
        String realname = users.getRealname();
        try {
            realname = new String(realname.getBytes("IOS-8859-1"),"utf-8");
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        System.out.println(users.getUsername()+users.getPwd()+users.getConfirmpwd()+users.getRealname());
        
        return "suc";
    }
}

 

package renjiale.pojo;
/*
*通过实体类, 封装数据
*/
import java.io.Serializable;

public class Users implements Serializable {
    private String username;
    private Integer pwd;
    private Integer confirmpwd;
    private String realname;
    public String getUsername() {
        return username;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    public Integer getPwd() {
        return pwd;
    }
    public void setPwd(Integer pwd) {
        this.pwd = pwd;
    }
    public Integer getConfirmpwd() {
        return confirmpwd;
    }
    public void setConfirmpwd(Integer confirmpwd) {
        this.confirmpwd = confirmpwd;
    }
    public String getRealname() {
        return realname;
    }
    public void setRealname(String realname) {
        this.realname = realname;
    }
    @Override
    public String toString() {
        return "Users [username=" + username + ", pwd=" + pwd + ", confirmpwd=" + confirmpwd + ", realname=" + realname
                + "]";
    }
    
    
}

 

4.【上机】实现Spring MVC和AJAX的交互，包括接收json请求参数

5.【上机】使用Spring MVC实现文件上传

6.【上机】Spring MVC使用二种方式实现自定义拦截器

7.【上机】使用自定义拦截器实现用户登录验证

8.【上机】集成Spring与Spring MVC

9.【上机】集成Spring与Spring MVC加JDBC，实现对用户的CRUD操作

posted @ 2019-08-06 17:28  任我行的编程乐园  阅读(249)  评论(0)  编辑  收藏  举报