本文参考了,下面文章。
http://www.cnblogs.com/superjt/p/3309255.html
Web.xml:
<!-- Spring MVC 总servlet配置 -->
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 可以自定义servlet.xml配置文件的位置和名称,默认为WEB-INF目录下,名称为[<servlet-name>]-servlet.xml,如spring-servlet.xml
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring-servlet.xml</param-value> 默认
</init-param>
-->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<!-- Spring Context 配置 -->
<!-- ====================================== -->
<listener>
<listenerclass>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<!--Spring Context 配置文件所在目录, 会被上面的Listener使用。默认配置在WEB-INF目录下 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:config/applicationContext.xml</param-value>
</context-param>
spring-servlet.xml
1. 此名称为不指定配置文件的默认名,
2. 还可以在web.XML总配置,
3. 也可以是 DispatcherServlet 的名字开头的一个文件名。
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/context <a href="http://www.springframework.org/schema/context/spring-context-3.0.xsd">http://www.springframework.org/schema/context/spring-context-3.0.xsd</a>">
<!-- 启用spring mvc 注解 -->
<context:annotation-config />
<!-- 设置使用注解的类所在的jar包 -->
<context:component-scan base-package="controller"></context:component-scan>
<!-- 完成请求和注解POJO的映射 -->
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />
<!-- 对转向页面的路径解析。prefix:前缀, suffix:后缀 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/jsp/" p:suffix=".jsp" />
</beans>
Controller
Controller.java
@Controller
@RequestMapping("/test2/login.do")可以作用在某个方法上。
@RequestMapping("/test2/login.do")可以作用在某个controller上, 函数上的URL会被追加到此URL后面
@RequestMapping 如果在方法上且不指定详细URL,就是controller的默认处理方法。
@RequestMapping(params = "method=1", method=RequestMethod.POST) URL参数
@RequestMapping("/test3/*")通配符
@RequestMapping(value="/comment/{blogId}", method=RequestMethod.POST) 路径参数化
public void comment(Comment comment,@PathVariable int blogId, HttpSession session, HttpServletResponse response) throws IOException {
}
Spring MVC 参数:
可以是单个参数
可以是request/response,
可以是JAVA POJO,
可以指定是否为null,
如果是post JSON对象,必须用request的流来出去并且处理。 返回要用@ResponseBody来指定。
可以路径参数化
public ModelAndView testLogin2(String username, String password, int age)
public String testLogin(@RequestParam(value="username")String username, String password, HttpServletRequest request)
public ModelAndView testLogin3(User user)
@RequestMapping(value="/comment/{blogId}", method=RequestMethod.POST) 路径参数化
public void comment(Comment comment,@PathVariable int blogId, HttpSession session, HttpServletResponse response) throws IOException {
}
返回值
return "loginSuccess";//直接返回路径
return new ModelAndView("loginSuccess");//返回modelviever
mv= new ModelAndView();
mv.add
return mv //返回modelviever带数据
Spring 相关
@Resource(name = "loginService") //JAVA 标准的注解, 和@AutoWire一个功能。
This code uses Spring 4’s new @RestController
annotation, which marks the class as a controller where every method returns a domain object instead of a view. It’s shorthand for @Controller
and @ResponseBody
rolled together.