圖片-java web 裡面在xml裡面配置servlet時出現了如下錯誤

java web 裡面在xml裡面配置servlet時出現了如下錯誤

剛開始是這樣的

後來又刷新了一遍

我已經快瘋了，網上說是類名不對，可是我的是對的啊
package MyServelet;

import java.io.IOException;

import javax.servlet.Servlet;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;

public class MyFirstServelet implements Servlet
{

@Override
public void destroy() {
    // TODO Auto-generated method stub
    System.out.println("destroy");
}

@Override
public ServletConfig getServletConfig() {
    // TODO Auto-generated method stub
    System.out.println("getServletConfig");
    return null;
}

@Override
public String getServletInfo() {
    // TODO Auto-generated method stub
    System.out.println("getServletInfo");
    return null;
}

@Override
public void init(ServletConfig arg0) throws ServletException {
    // TODO Auto-generated method stub
    System.out.println("init");
}

@Override
public void service(ServletRequest arg0, ServletResponse arg1) throws ServletException, IOException {
    // TODO Auto-generated method stub
    System.out.println("service");
}

public MyFirstServelet()
{
System.out.println("我成功了。。。。。");
}
}

<?xml version="1.0" encoding="UTF-8"?>


hello

<servlet-class>MyServelet.MyFirstServelet</servlet-class>

hello
/happy

最佳回答：

項目clean下，可能是編譯類文件沒有發布過去。