文章摘要
这篇文章描述了一个JavaServlet，名为IndexController，用于处理HTTP GET请求。该Servlet定义在web.app目录下的controller包中，并且通过@WebServlet注解实现了Servlet功能。在 doGet方法中，它设置了响应的编码为UTF-8，配置了响应类型，并通过request.getRequestDispatcher加载了名为view/index.jsp的视图文件，最后通过forward方法将请求转发给响应。代码还包含了一个 catch块，用于捕获和处理异常，并打印出错误信息和堆栈跟踪。文章重点突出了Servlet的结构、基本功能以及异常处理机制。
package web.app.controller;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet(“/IndexController”)
public class IndexController extends HttpServlet
{
private static final long serialVersionUID=-8227194254553105913L;
@Override
public void doGet(HttpServletRequest request,HttpServletResponse response)
throws ServletException, IOException
{
try{
response.setCharacterEncoding(“utf-8”);
response.setContentType(“text/html;charset=utf-8”);
//response.getWriter().println(“success”);
request.setAttribute(“test”,”hello world this is class name index controller”);
request.getRequestDispatcher(“view/index.jsp”).forward(request, response);;
}catch(Exception e)
{
System.out.println(“error”);
e.printStackTrace();
}
}
}