大佬教程收集整理的这篇文章主要介绍了SpringMVC Servlet映射,大佬教程大佬觉得挺不错的,现在分享给大家,也给大家做个参考。
您已将定义<url-
pattern>
为/
,这意味着您appServlet
将仅收到对根URL的请求。通过将其改为/*
了appServlet
将得到所有传入的请求。这将起作用,但是您也可以考虑创建一个loginServlet
可以映射到url
的特定对象/login/*
。
web.xml
。通过添加更多<servlet-mapping>
标签来指定哪个请求将命中每个servlet 。PersonController
,AddressController
等等。/persons/{ID}
,/persons/search
,/persons/add
等。我写了一个非常简单的Spring MVC应用程序。我很抱歉,我还不熟悉Spring MVC,所以请多多包涵。
web.xml如下
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLscheR_792_11845@a-instance"
xsi:scheR_792_11845@aLOCATIOn="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<!-- The definition of the Root Spring Container shared by all Servlets and Filters -->
<context-param>
<param-name>contextConfigLOCATIOn</param-name>
<param-value>/WEB-INF/spring/root-context.xml</param-value>
</context-param>
<!-- Creates the Spring Container shared by all Servlets and Filters -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- Processes application requests -->
<servlet>
<servlet-name>appServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLOCATIOn</param-name>
<param-value>/WEB-INF/spring/appServlet/servlet-context.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>appServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
我的第一个问题是,我有一个使用以下代码登录的jsp页面&Hellip;
<form action="/login" method="post" >
Username : <input name="username" type="text" />
password : <input name="password" type="password" />
<input type="submit" />
</form>
这给出了404,但在我的控制器中,我已使用以下代码将控制器映射到/ login &Hellip;
@Controller
public class LoginController {
private static final Logger logger = LoggerFactory.getLogger(LoginController.class);
/**
* Simply SELEcts the home view to render by returning its name.
*/
@requestMapping(value = "/login",method = requestMethod.POST)
public String home(Locale locale,Model model,String username,String password) {
if(username.equalsIgnoreCase("david"))
{
logger.info("Welcome home! the client locale is "+ locale.toString());
Date date = new Date();
DateFormat dateFormat = DateFormat.getdatetiR_792_11845@eInstance(DateFormat.LONG,DateFormat.LONG,localE);
String formattedDate = dateFormat.format(datE);
model.addAttribute("serverTime",formattedDate );
return "home";
}
else
{
return "void";
}
}
}
我的理解是@requestmapping应该执行servlet映射而不是在web.xml中,这是正确的吗?如果需要,下面还将显示/WEB-
INF/spring/appServlet/servlet-context.xml的值。
<?xml version="1.0" encoding="UTF-8"?>
<beans:beans xmlns="http://www.springframework.org/scheR_792_11845@a/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLscheR_792_11845@a-instance"
xmlns:beans="http://www.springframework.org/scheR_792_11845@a/beans"
xmlns:context="http://www.springframework.org/scheR_792_11845@a/context"
xsi:scheR_792_11845@aLOCATIOn="http://www.springframework.org/scheR_792_11845@a/mvc http://www.springframework.org/scheR_792_11845@a/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/scheR_792_11845@a/beans http://www.springframework.org/scheR_792_11845@a/beans/spring-beans-3.0.xsd
http://www.springframework.org/scheR_792_11845@a/context http://www.springframework.org/scheR_792_11845@a/context/spring-context-3.0.xsd">
<!-- DispatcherServlet Context: defines this servlet's request-processing infrastructure -->
<!-- Enables the Spring MVC @Controller progrAMMing model -->
<Annotation-driven />
<!-- Handles http GET requests for /@R_673_5550@es/** by efficiently serving up static @R_673_5550@es in the ${webappRoot}/@R_673_5550@es directory -->
<@R_673_5550@es mapping="/@R_673_5550@es/**" LOCATIOn="/@R_673_5550@es/" />
<!-- Resolves views SELEcted for rendering by @Controllers to .jsp @R_673_5550@es in the /WEB-INF/views directory -->
<beans:bean class="org.springframework.web.servlet.view.Internal@R_673_5550@eViewResolver">
<beans:property name="prefix" value="/WEB-INF/views/" />
<beans:property name="suffix" value=".jsp" />
</beans:bean>
<context:component-scan base-package="org.david.myapp" />
</beans:beans>
所以我的第一个问题是:servlet映射是在web.xml还是在控制器类的@requestmapping中完成的?
第二个问题:构建更多页面的最佳方法是什么,我应该继续附加到webxml吗?我应该为每个网址创建一个控制器吗?是否应该为每个网址创建一个servlet上下文?
谢谢阅读 :)
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