springMVC几种页面跳转方式小结几种页面跳转方式小结
本篇文章主要介绍了springMVC 几种页面跳转方式,小编觉得挺不错的,现在分享给大家,也给大家做个参
考。一起跟随小编过来看看吧
前面已经了解了Controller的几种配置方式
今天主要写一下响应界面跳转的几种方式
1.在注解的方式中在注解的方式中
1.1通过HttpServletResponse的API直接输出(不需要配置渲染器)
controller类的主要代码
@Controller
public class RequestController{
@RequestMapping("/resp")
public void handleRequest(HttpServletRequest req, HttpServletResponse resp) throws Exception {
resp.getWriter().println("hello HttpServletResponse");
}
web.xml配置
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
dispatcher-servlet.xml主要代码
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<!--作用是扫描指定包下所有的包含注解的类-->
<context:component-scan base-package="com.jsu.mvc"/>
</beans>
1.2 使用HttpServletResponse 重定向到另一个视图(其他不变 )
@RequestMapping("/resp")
public void handleRequest(HttpServletRequest req, HttpServletResponse resp) throws Exception {
resp.sendRedirect("index.jsp");
}
}
1.3 使用HttpServletRequest 转发(默认访问/下的index.jsp页面 不受渲染器的影响)
@RequestMapping("/resp")
public void handleRequest(HttpServletRequest req, HttpServletResponse resp) throws Exception {
req.setAttribute("message","it's forword ");
req.getRequestDispatcher("index.jsp").forward(req,resp);
}