【SpringMvc框架】springmvc框架配置与操作
导读：本篇文章讲解 【SpringMvc框架】springmvc框架配置与操作，文章出自：https://blog.csdn.net/weixin_43316702/article/details/105309153希望对大家有帮助，欢迎收藏，转发！站点地址：www.javazhiyin.com.com
SpringMvc：
SpringMVC是Web层的框架，是一种基于Java，实现了Web MVC设计模式，Spring MVC 分离了控制器、模型对象、分派器以及处理程序对象的角色，每一个角色都可以由一个专门的对象来实现。
传统的MVC模式：
SpringMvc设计流程：
根据上图流程我们来配置一下:
创建springmvc的配置文件，设置处理器映射器、处理器适配器、视图解析器：
<?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:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 将controller交给spring管理 -->
<context:component-scan base-package="com.springmvc"></context:component-scan>
<!--
<mvc:annotation-driven/>默认创建RequestMappingHandlerMapping，RequestMappingHandlerAdapter
提供对json数据格式支持
-->
<!--<mvc:annotation-driven/>-->
<!-- 配置注解处理器映射器
功能：负责寻找执行类：Controller
-->
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"></bean>
<!-- 配置注解处理器适配器
功能：执行Controller
-->
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
<!-- 对json数据格式的支持-->
<property name="messageConverters">
<bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"></bean>
</property>
</bean>
<!-- 配置视图解析器：解析出真正的物理视图
后台返回逻辑视图：index
解析出真正的物理视图，前端+逻辑视图+后缀==/WEB-INF/index.jsp(/index.jsp)
-->
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
注意：
<mvc:annotation-driven/>默认创建RequestMappingHandlerMapping，RequestMappingHandlerAdapter且
提供对json数据格式支持，即这一个配置可同时创建映射器和适配器。
在web.xml加入配置文件（复制修改路径即可使用）
<?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_4_0.xsd"
version="4.0">
<!-- 处理编码格式 -->
<filter>
<filter-name>characterEncodingFilter</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>
<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>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- springmvc默认加载springmvc的配置文件，这个需要满足以下规则：
命名规则：servlet-name-servlet.xml====>springmvc-servlet.xml
路径规范：springmvc-servlet.xml必须放在WEB-INF下面
-->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:dispatcher.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/rest/*</url-pattern>
</servlet-mapping>
</web-app>
User：
package com.springmvc.domain;
import java.util.Date;
public class User {
private Integer id;
private String username;
private Integer age;
private Date birthday;
private String address;
public User(Integer id, String username, Integer age, Date birthday, String address) {
this.id = id;
this.username = username;
this.age = age;
this.birthday = birthday;
this.address = address;
}
public User() {
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public Date getBirthday() {
return birthday;
}
public void setBirthday(Date birthday) {
this.birthday = birthday;
}
public String getAddress() {
return address;
}
public void setAddress(String address) {
this.address = address;
}
@Override
public String toString() {
return "User{" +
"username='" + username + '\'' +
", age=" + age +
", birthday=" + birthday +
", address='" + address + '\'' +
'}';
}
}
UserController：
@Controller//<bean id="userController" class="UserController路径">
public class UserController {
//接收javaBean参数
@RequestMapping("recieveUser")
public String recieveUser(User user){
System.out.println(user);
return "success";
}
}
jsp：
<form action="${pageContext.request.contextPath}/recieveUser.do" method="get" >
姓名<input type="text" name="username" id="username">
年龄<input type="text" name="age" id="age">
生日<input type="text" name="birthday" id="birthday">
地址<input type="text" name="address" id="address">
<input type="submit" value="提交">
</form>
操作截图：
谢谢阅读。
