spring26-处理数据模型--从表单到controller传输数据续

创建maven项目就不说了，需要的找我前面的博客

pom.xml文件

    <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
      <modelVersion>4.0.0</modelVersion>
      <groupId>com.geyao</groupId>
      <artifactId>springmaven</artifactId>
      <version>0.0.1-SNAPSHOT</version>
      <dependencies>
     <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>4.2.8.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>4.2.8.RELEASE</version>
    </dependency>
    <dependency>  
            <groupId>javax.servlet</groupId>  
            <artifactId>servlet-api</artifactId>  
            <version>2.5</version>  
        </dependency>  
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>4.2.8.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-beans</artifactId>
        <version>4.2.8.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>4.2.8.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aop</artifactId>
        <version>4.2.8.RELEASE</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-expression</artifactId>
        <version>4.2.8.RELEASE</version>
    </dependency>
      </dependencies>
    </project>

web.xml

    <?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_3_0.xsd" id="WebApp_ID" version="3.0">
        <display-name>Springmaven01</display-name>
     <welcome-file-list>
      <welcome-file>/WEB-INF/jsp/home.jsp</welcome-file>
     </welcome-file-list>
     
       
     
        <!-- 处理中文乱码 -->
        <filter>
            <filter-name>encodingFilter</filter-name>
            <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
            <init-param>
                <param-name>encoding</param-name>
                <param-value>UTF-8</param-value>
            </init-param>
        </filter>
        <filter-mapping>
            <filter-name>encodingFilter</filter-name>
            <url-pattern>/*</url-pattern>
        </filter-mapping>
        <!-- SpringMVC控制器 -->
        <servlet>
            <servlet-name>dispatcherServlet</servlet-name>
            <!-- 主要就是DispatcherServlet这个servlet起到分发的作用，对请求进行控制分发 -->
            <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
            <init-param>
                <!-- 每个springmvc项目都要一个springmvc项目配置位置，下面配置springmvc配置文件的路径 -->
                <param-name>contextConfigLocation</param-name>
                <param-value>classpath*:springMVC-servlet.xml</param-value>
            </init-param>
            <!-- 当容器启动时立即启动 -->
            <load-on-startup>1</load-on-startup>
        </servlet>
        <servlet-mapping>
            <servlet-name>dispatcherServlet</servlet-name>
            <!-- 下面配置springmvc的过滤分发请求类型，可以是/ 或者*.action等 -->
            <url-pattern>/</url-pattern>
        </servlet-mapping>
      
    </web-app>

springMVC-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: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.xsd
            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.1.xsd
            http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd">
        <!-- 定义要扫描 controller的包-->
        <context:component-scan base-package="wormday.springmvc.helloworld" />
     
     
        <!-- 配置视图解析器 如何把handler 方法返回值解析为实际的物理视图 -->
        <!--指定视图解析器-->
        <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
            <!-- 视图的路径 -->
            <property name="prefix" value="/WEB-INF/jsp/"/>
            <!-- 视图名称后缀  -->
            <property name="suffix" value=".jsp"/>
        </bean>
     
    </beans>

indexcontoller类

    package wormday.springmvc.helloworld;
     
    import org.springframework.stereotype.Controller;
     
    import org.springframework.web.bind.annotation.RequestMapping;
     
    import wormday.springmvc.pojo.User;
    @Controller
    @RequestMapping("/user")
    public class UserController {
        @RequestMapping("/form")
        public String form() {
            return "form";
        }
        @RequestMapping("/save")
        public String save(User user) {
            System.out.print(user);
            return "success";
        }
    }

Address类

    package wormday.springmvc.pojo;
     
    public class Address {
        private String province;
        public String getProvince() {
            return province;
        }
        public void setProvince(String province) {
            this.province = province;
        }
        public String getCity() {
            return city;
        }
        public void setCity(String city) {
            this.city = city;
        }
        private String city;
        public Address() {
            super();
        }
        @Override
        public String toString() {
            return "Address [province=" + province + ", city=" + city + "]";
        }
        
        
    }

user类

    package wormday.springmvc.pojo;
     
    public class User {
        public User() {
            super();
            // TODO Auto-generated constructor stub
        }
        private String username;
        private String password;
        private String email;
        private Integer age;
        private Address address;
        public String getUsername() {
            return username;
        }
        public void setUsername(String username) {
            this.username = username;
        }
        public String getPassword() {
            return password;
        }
        public void setPassword(String password) {
            this.password = password;
        }
        public String getEmail() {
            return email;
        }
        public void setEmail(String email) {
            this.email = email;
        }
        public Integer getAge() {
            return age;
        }
        public void setAge(Integer age) {
            this.age = age;
        }
        public Address getAddress() {
            return address;
        }
        public void setAddress(Address address) {
            this.address = address;
        }
        @Override
        public String toString() {
            return "User [username=" + username + ", password=" + password + ", email=" + email + ", age=" + age
                    + ", address=" + address + "]";
        }
            
        
    }

form.jsp

    <%@ 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>
    <form action="save" method="post">
    <label for="">用户名:<input type="text" name="username"/></label>
    <label for="">密码:<input type="text" name="password"/></label>
    <label for="">年龄:<input type="text" name="age"/></label>
    <label for="">邮箱:<input type="text" name="email"/></label>
    <label for="">省份:<input type="text" name="address.province"/></label>
    <label for="">城市:<input type="text" name="address.city"/></label>
    <button>登录</button>
    </form>
    </body>
    </html>

运行结果