Question

我正在使用Tomcat 7和Spring MVC 3.2.x RELEASE。 Spring模板代码由Intellij生成，我刚刚添加了一个syserr消息输出。

当我启动服务器时，默认控制器被调用三次，并且仅在启动时，之后才能正常工作。我这是配置错误还是错误？

以下是配置文件：

@Controller
@RequestMapping("/")
public class HelloController {
    private static int t = 0;

    @RequestMapping(method = RequestMethod.GET)
    public String printWelcome(ModelMap model) {
        model.addAttribute("message", "Hello world!");
        System.err.println("Print num: " + (++t));
        return "hello";
    }
}

//输出

INFO: Root mapping to handler 'helloController'
Jun 22, 2013 1:41:21 AM org.springframework.web.servlet.FrameworkServlet initServletBean
INFO: FrameworkServlet 'mvc-dispatcher': initialization completed in 413 ms
[2013-06-22 01:41:21,561] Artifact SpringTest:war exploded: Artifact is deployed successfully
Print num: 1
Print num: 2
Print num: 3
Jun 22, 2013 1:41:22 AM org.springframework.web.servlet.DispatcherServlet noHandlerFound
WARNING: No mapping found for HTTP request with URI [/favicon.ico] in DispatcherServlet with name 'mvc-dispatcher'
Jun 22, 2013 1:41:30 AM org.apache.catalina.startup.HostConfig deployDirectory
INFO: Deploying web application directory C:\Users\Milky\apache-tomcat-7.0.41\webapps\manager

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       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/context http://www.springframework.org/schema/context/spring-context.xsd">

    <context:component-scan base-package="com.springapp.mvc"/>

    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/pages/"/>
        <property name="suffix" value=".jsp"/>
    </bean>

</beans>

<web-app version="2.4"
    xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
    http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">

    <display-name>Spring MVC Application</display-name>

    <servlet>
        <servlet-name>mvc-dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>mvc-dispatcher</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>

Answer 1

使用Intellij IDEA时（当应用程序启动时），可以调用сontroller方法三次 - 因为服务器配置"After launch"设置。

您可以尝试取消选择它：screenshot from server configuration

服务器启动时弹簧三重负载控制器

1 个答案: