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spring-mvc基于注解的配置

将配置文件修改为:

<?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"
       xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
        http://www.springframework.org/schema/mvc
        http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
        http://www.springframework.org/schema/context
        http://www.springframework.org/schema/context/spring-context-3.2.xsd
        http://www.springframework.org/schema/aop
        http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
        http://www.springframework.org/schema/tx
        http://www.springframework.org/schema/tx/spring-tx-3.2.xsd">

    <!-- 1.配置注解扫描位置 -->
    <context:component-scan base-package="com.royal.backoffice.web.controller"/>

    <!-- 2. 配置处理器映射,通过注解来查找 -->
    <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"></bean>

    <!-- 3.配置注解处理适配器来执行控制器的方法 -->
    <bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
    <property name="messageConverters">
        <!--配置一个json转换器,需要导入jackson与jackson-mapper两个jar包-->
        <bean class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter"></bean>
    </property>
  </bean>

    <!-- 4.配置springmvc视图解析器-->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/views/" />
        <property name="suffix" value=".jsp" />
    </bean>

</beans>

 

然后创建一个controller包用于放置控制器在类里面添加注解,如:

@Controller
@RequestMapping("/user")



其他注解:

  @ResponseBody:把后台pojo转换json对象,返回到页面。

  @RequestBody:接受前台json数据,把json数据自动封装javaBean

  需要导入jackson与jackson-mapper两个jar包


posted @ 2019-12-11 16:24  royal6  阅读(316)  评论(0编辑  收藏  举报