<script src="/${appName}/commons/jslib/CommonValue.js"></script>
![](https://img.laitimes.com/img/9ZDMuAjOiMmIsIjOiQnIsISPrdEZwZ1Rh5WNXp1bwNjW1ZUba9VZwlHdsATOfd3bkFGazxCMx8VesATMfhHLlN3XnxCMwEzX0xiRGZkRGZ0Xy9GbvNGLpZTY1EmMZVDUSFTU4VFRR9Fd4VGdsYTMfVmepNHLrJXYtJXZ0F2dvwVZnFWbp1zczV2YvJHctM3cv1Ce-cmbw5SO3ITN5EmZiZ2MzATY4gDOiJWNzgTOzQWZxMTZ0U2N08CXxMzLcVDMxIDMy8CXn9Gbi9CXzV2Zh1WavwVbvNmLvR3YxUjL0M3Lc9CX6MHc0RHaiojIsJye.png)
package com.autumn.servlet;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
/**
* Created by Administrator on 2018/6/6.
*/
public class Dispatcher extends org.springframework.web.servlet.DispatcherServlet {
private static final long serialVersionUID = -7677752525845571027L;
@Override
public void init(ServletConfig config) throws ServletException {
super.init(config);
String appName = config.getInitParameter("appName").trim(); //web.xml中初始化參數
config.getServletContext().setAttribute("appName", appName); //将這個appName放入servletContext中
}
}
<!-- springmvc的前端控制器 -->
<servlet>
<servlet-name>bookkeep-web</servlet-name>
<servlet-class>com.autumn.servlet.Dispatcher</servlet-class> <!--原來為org.springframework.web.servlet.DispatcherServlet-->
<!-- contextConfigLocation不是必須的, 如果不配置contextConfigLocation, springmvc的配置檔案預設在:WEB-INF/servlet的name+"-servlet.xml" -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring/Springmvc.xml</param-value>
</init-param>
<init-param>
<param-name>appName</param-name>
<param-value>Bookkeeping</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>bookkeep-web</servlet-name>
<!-- 攔截所有請求jsp除外 -->
<url-pattern>/</url-pattern>
</servlet-mapping>
Springmvc.xml
<?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"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd">
<!-- 掃描controller驅動 -->
<context:component-scan base-package="com.autumn.controller" />
<!-- 注解驅動 -->
<mvc:annotation-driven />
<!--controller傳回的視圖解析器,例如傳回login,實際解析為http://ip:port/projectName/WEB-INF/jsp/login.jsp-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
Controler測試
@Controller
@RequestMapping("/loginController")
public class LoginController {
@Autowired
public LoginService loginService;
@RequestMapping("/login/{id}")
@ResponseBody //将傳回的對象解析成json字元串
public Account login(@PathVariable String id){
Account account = loginService.login(id);
return account; //傳回json字元串
}
@RequestMapping("/loginpage/{id}")
public String loginpage(@PathVariable String id){
Account account = loginService.login(id);
if (account==null) {
return "login"; //傳回springmvc中配置的/WEB-INF/jsp/login.jsp
}else {
return "index"; //傳回springmvc中配置的/WEB-INF/jsp/index.jsp
}
}
}
其他方法
不用統一管理的${appName}可以用<base href="">标簽
<base> 标簽為頁面上的所有連結規定預設位址或預設目标。通常情況下,浏覽器會從目前文檔的 URL 中提取相應的元素來填寫相對 URL 中的空白。
jsp中先聲明schema://server:port/contextpath/
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<base href="<%=basePath%>">