【Web】了解springMVC运行原理_springmvc web.xml原理-优快云博客

先来使用 springMVC 做一个入门级的 HelloWorld 程序。

新建项目，导入所需jar包，详情如下：

配置Web.xml

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<servlet>
<servlet-name>springMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:config/spring-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMVC</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>

编写Controller

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package com.tgb.controller;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;
public class HelloWorldController implements Controller {
@Override
public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response)
throws Exception {
System.out.print("---hellogghhyy---");
String hello="hello ghy";
return new ModelAndView("/welcome","result",hello);
}
}

配置spring-servlet.xml

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<bean name="/test/helloWorld" class="com.tgb.web.controller.HelloWorldController" />
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/"></property>
<property name="suffix" value=".jsp"></property>
</bean>