SSM整合——控制层的整合

Springmvc.xml,处理器映射器、处理器适配器(可以mvc注解驱动规则这两个处理器映射器、处理器适配器)，视图解析器。

<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-3.1.xsd 
        http://www.springframework.org/schema/mvc 
        http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd 
        http://www.springframework.org/schema/context 
        http://www.springframework.org/schema/context/spring-context-3.1.xsd 
        http://www.springframework.org/schema/aop 
        http://www.springframework.org/schema/aop/spring-aop-3.1.xsd 
        http://www.springframework.org/schema/tx 
        http://www.springframework.org/schema/tx/spring-tx-3.1.xsd ">
    
    <context:component-scan base-package="com.my.ssm.action" />
    
    <mvc:annotation-driven />
    
    <bean
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        
        <property name="prefix" value="/jsp/" /> 
        
        <property name="suffix" value=".jsp" />
    bean>
beans>

配置前端控制器：在web.xml配置：

    <context-param>
        <param-name>contextConfigLocationparam-name>
        <param-value>classpath:spring/applicationContext-*.xmlparam-value>
    context-param>

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListenerlistener-class>
    listener>
    
    <filter>
        <filter-name>CharacterEncodingFilterfilter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilterfilter-class>
        <init-param>
            <param-name>encodingparam-name>
            <param-value>utf-8param-value>
        init-param>
    filter>
    <filter-mapping>
        <filter-name>CharacterEncodingFilterfilter-name>
        <url-pattern>/*url-pattern>
    filter-mapping>

    
    <servlet>
        <servlet-name>springmvcservlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServletservlet-class>
        
        <init-param>
            <param-name>contextConfigLocationparam-name>
            <param-value>classpath:spring/springmvc.xmlparam-value>
        init-param>
    servlet>

    <servlet-mapping>
        <servlet-name>springmvcservlet-name>
        <url-pattern>*.actionurl-pattern>
    servlet-mapping>

    <welcome-file-list>
        <welcome-file>index.htmlwelcome-file>
        <welcome-file>index.htmwelcome-file>
        <welcome-file>index.jspwelcome-file>
        <welcome-file>default.htmlwelcome-file>
        <welcome-file>default.htmwelcome-file>
        <welcome-file>default.jspwelcome-file>
    welcome-file-list>
web-app>

编写action:

@Controller
@RequestMapping("/user")
public class UserAction {
    //查询用户信息
    //注入userService
    @Autowired
    private UserService userService;
    //查询用户信息
    @RequestMapping("/queryUser")
    public String queryUser(Model model,Integer id) throws Exception{
        //调用service
        System.out.println("========");
        User user = userService.findUserById(id);
        model.addAttribute("user", user);
        //返回逻辑视图名
        return "/jsp/queryUser";
    }
}