作者:王奎 我的博客:www.marksaas.com
首先建立一個web工程,在index.jsp中添加如下一個表單:
<form action="Control.htm" method="post">
name:<input type="text" name="username"/><br/>
password:<input type="password" name="password"/><br/>
<input type="submit"/>
</form>
然後建一個 在classpath下新建一個Control.java文件,代碼如下:
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 IP extends HttpServlet {
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html");
PrintWriter out=response.getWriter();
String name=request.getParameter("username");
String password=request.getParameter("password");
if(name.equals(name) && password.equals(password)){
out.print("success");
}else{
out.print("fail");
}
}
}
然後再web.xml 中增加如下配置:
<servlet>
<servlet-name>Control</servlet-name>
<servlet-class>cn.xd.servlet.Control</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Control</servlet-name>
<url-pattern>/Control.htm</url-pattern>
</servlet-mapping>
最後部署自己的項目到服務器測試,如果在表單中輸入用戶名爲admin並且password也爲admin則返回成功頁面,否則返回false頁面。