**html代码中的表单提交后显示无法找到文件 不能转到servlet中 代码十分简单 找不出问题所在 求大神指教！！
html代码：
_
<html>
<head>
<title>hello</title>
<meta charset="utf-8">
</head>
<body>
<form action="hello" method="post">
<fieldset>
<input name="123"/><br>
<input type="submit" value="queding">
</fieldset>
</form>
</body>
</html>
**_
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<servlet>
<servlet-name>hello world</servlet-name>
<servlet-class>serverletdemo.helloworld</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>hello world</servlet-name>
<url-pattern>/hello</url-pattern>
</servlet-mapping>
</web-app>__
****
servlet代码：
package serverletdemo;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class helloworld extends HttpServlet{
public void service(HttpServletRequest request,HttpServletResponse response)
throws ServletException,IOException{
response.setContentType("text/html");
PrintWriter pw = response.getWriter();
pw.println("<h1>Hello World</h1>");
pw.close();
}
}
