Spring MVC表单提交小小小实例

前序

 本篇文章是利用springMVC框架实现了简单的表单提交的功能,可以在jsp页面上提交数据,并能跳转页面,在另外的jsp页面上接受数据

 

框架结构

 

为05requestparams 模块!

 

代码实现

 1.regist.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>test1</title>
</head>
<body>
　　
　 　<!-- 首先我们需要在浏览器中访问到这个jsp页面,填写内容后提交表单,浏览器就会收到 /user/param01.do 这个请求,然后转交给tomcat -->
    <form method="post" action="/user/params01.do">
        姓名：<input type="text" name="username">
        <br>
        年龄：<input type="text" name="age">
        <br>
        <input type="submit" value="提交">
    </form>
</body>
</html>

 

2.pom.xml

<?xml version="1.0" encoding="UTF-8"?>

<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.dss</groupId>
  <artifactId>learnspringmvc1</artifactId>
  <version>1.0-SNAPSHOT</version>
  <modules>
      <module>05requestparams</module>
  </modules>
  <packaging>pom</packaging>

  <name>learnspringmvc1 Maven Webapp</name>
  <!-- FIXME change it to the project's website -->
  <url>http://www.example.com</url>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
  </properties>

  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.1.0</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>5.0.4.RELEASE</version>
    </dependency>
  </dependencies>

  <build>
    <finalName>learnspringmvc1</finalName>
    <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
      <plugins>
        <plugin>
          <artifactId>maven-clean-plugin</artifactId>
          <version>3.0.0</version>
        </plugin>
        <!-- see http://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_war_packaging -->
        <plugin>
          <artifactId>maven-resources-plugin</artifactId>
          <version>3.0.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>3.7.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-surefire-plugin</artifactId>
          <version>2.20.1</version>
        </plugin>
        <plugin>
          <artifactId>maven-war-plugin</artifactId>
          <version>3.2.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-install-plugin</artifactId>
          <version>2.5.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-deploy-plugin</artifactId>
          <version>2.8.2</version>
        </plugin>
      </plugins>
    </pluginManagement>
  </build>
</project>

 

注:可能有一些dependency和plugin没有用到.(我直接把这些内容放在了最外面这个模块的pom.xml文件中)

3.web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">

  <!--字符编码过滤器-->
  <!--最好配置在其他过滤器之前，因为过滤器的执行顺序是根据web.xml中的顺序一致-->
  <filter>
    <filter-name>characterEncodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>

    <!--手动指定字符编码-->
    <init-param>
      <!--因为当前filter中的成员变量叫做encoding，所以此处必须也写成encoding-->
      <param-name>encoding</param-name>
      <param-value>utf-8</param-value>
    </init-param>

    <!--强制指定字符编码，即使在request或者response中设置了字符编码，那么也会为其强制使用当前设置的字符编码-->
    <init-param>
      <param-name>forceEncoding</param-name>
      <param-value>true</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>characterEncodingFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>


  <!-- 注册spring MVC中央控制器 -->
  <servlet>
    <servlet-name>springMVC</servlet-name>
    <!-- spring MVC中的核心控制器 -->
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
　　<!-- 中央控制器接收到url请求后就会找到spring.xml文件,然后处理 -->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:springmvc.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>

　<!-- 在这里,url请求用的是*.do格式,即以*.do格式的url请求都会交到中央控制器DispatcherServlet处理 -->
  <servlet-mapping>
    <servlet-name>springMVC</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>

</web-app>

 

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


    <!--注解驱动-->
    <mvc:annotation-driven/>

    <!-- 注册组件扫描器 -->
　　 <!-- 接收到中央控制器转过来的url命令后,就会到com.dss这个包下面去扫描所有的注解, -->
    <context:component-scan base-package="com.dss.*"/>

    <!-- 视图解析器 -->
    <bean
            class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>

</beans>

 

5.Controller01.java

package com.dss.controller;

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

@Controller
@RequestMapping("/user")
public class Controller01 {

    @RequestMapping("/params01")
    public ModelAndView getParams01(String username,int age)throws Exception{
        //方法的参数需要和提交表单里面的参数一致
        ModelAndView mv = new ModelAndView();
        mv.addObject("username",username);
        mv.addObject("age",age);
        mv.setViewName("result");
        return mv;

    }
}

 注:在这里就接收到了/user/params01.do的url请求.然后接收输入的username和age的数据,并将数据转交给一个叫"result"的文件;

 

6.result.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>test1</title>
</head>
<body>
    姓名：${username}
    <br>
    年龄：${age}
</body>
</html>

 注:这样就在result.jsp页面上接收到了从regist.jsp页面传来的数据

 

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posted on 2018-07-31 13:24  董大志  阅读(2948)  评论(0)    收藏  举报

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