作者:小萝卜丝(转载请声明)
springMVC
SpringMVC是spring框架里面的一个模块,用法和springIOC不一样,但是同时用也可以,
SpringMVC本身的jar包
spring-web-4.3.10.RELEASE
spring-webmvc-4.3.10.RELEASE
加上springIOC和AOP的包总共是这些:
首先在web.xml文件里面配置拦截器
<servlet>
<servlet-name>servletDispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc-config.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>servletDispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<filter>
<filter-name>HiddenHttpMethodFilter</filter-name>
<filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>HiddenHttpMethodFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
创建springMVC的配置文件:
在配置文件里面加上
<context:component-scan base-package="com.oracle.controller"></context:component-scan> 注解扫描
配置处理请求映射的bean
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
设置前缀和后缀,就是请求映射地址的拼接
<property name="prefix" value="/WEB-INF/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
做个简单的登陆流程:
首先前端写一个form表单
<form action="<%=basePath%>login" method="post">
用户名<input name="name"><br>
密码<input name="password"><br>
<input type="submit" value="登陆">
</form>
后台接收
@Controller
public class LoginController {
//登陆
@RequestMapping(value="login")
public String login(@RequestParam String name,@RequestParam String password){
System.out.println(name+password);
if(name.equals("admin")&&password.equals("123")){
return "success";
}else{
return "error";
}
}
}
@Controller 组件注释
@RequestMapping 声明请求映射,声名完请求映射之后就可以通过浏览器请求跳转
@RequestParam 声明参数,这个不能少
设置返回值对应的页面即可,也就是/WEB-INF/success.jsp