民间,
我正在使用基于Java Servlet 的Web应用程序,并使用Request URI 将多个客户端请求处理到一个servlet中使用条件语句来应用逻辑
ControlServlet.java
public class ControlServlet extends HttpServlet {
protected void processRequest(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
HttpSession session = request.getSession(true);
String strRequestURI = request.getRequestURI();
try{
if(strRequestURI.contains("/one")){
//Logic
}
if(strRequestURI.contains("/two")){
//Logic
}
if(strRequestURI.contains("/three")){
//Logic
}
if(strRequestURI.contains("/four")){
//Logic
}
}
catch(ServletException | IOException ex){
logs.errorLog(ex);
}
catch(Exception ex){
logs.errorLog(ex);
}
}
}
的web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.1" 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">
<servlet>
<servlet-name>ControlServlet</servlet-name>
<servlet-class>com.main.ControlServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>ControlServlet</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<session-config>
<session-timeout>
30
</session-timeout>
</session-config>
</web-app>
F_one.jsp
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<form method="POST" action="one.do" >
<!--First Form-->
</form>
</body>
</html>
F_two.jsp
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<form method="POST" action="two.do" >
<!--Second Form-->
</form>
</body>
</html>
我的问题是,我想避免使用条件语句检查每个请求。我可以使用case(switch)但我正在寻找基于 Annotation 的请求映射到Java Servlet,以便我可以同时处理 doGet()和 doPost() 方法,无需再次覆盖它。 如果有人知道,请让我知道模板,以便我可以更新我的项目。
提前致谢!!