这是我的servlet程序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 yafeeservlet extends HttpServlet
{
private static final long serialVersionUID = 3020357042485646017L; protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
{
PrintWriter out=resp.getWriter();
out.println("<h1>Hello</h1>");
out.flush();
out.close();
}
}
******************************************************************以下是我的web.xml文件<?xml version="1.0" encoding="ISO-8859-1"?><web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0"> <servlet>
<servlet-name>yyy</servlet-name>
<servlet-class>yafeeservlet</servlet-class>
</servlet><servlet-mapping>
<servlet-name>yyy</servlet-name>
<url-pattern>/hello</url-pattern>
</servlet-mapping>
</web-app>
当我在地址栏里输入http://localhost:8080/yafee/hello时,输出的错误页面为:另外我的tomcat启动正常,因为我输入http://localhost:8080时,出现了tomcat的欢迎页面
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 yafeeservlet extends HttpServlet
{
private static final long serialVersionUID = 3020357042485646017L; protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
{
PrintWriter out=resp.getWriter();
out.println("<h1>Hello</h1>");
out.flush();
out.close();
}
}
******************************************************************以下是我的web.xml文件<?xml version="1.0" encoding="ISO-8859-1"?><web-app xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
version="3.0"> <servlet>
<servlet-name>yyy</servlet-name>
<servlet-class>yafeeservlet</servlet-class>
</servlet><servlet-mapping>
<servlet-name>yyy</servlet-name>
<url-pattern>/hello</url-pattern>
</servlet-mapping>
</web-app>
当我在地址栏里输入http://localhost:8080/yafee/hello时,输出的错误页面为:另外我的tomcat启动正常,因为我输入http://localhost:8080时,出现了tomcat的欢迎页面
web.xml我怎么没有看到啊???
yafee/WEB-INF/ 这个目录下面应该会有web.xml文件吧。
是啊,web.xml是在web-inf下的。
包列表只显示文件夹,不显示文件的,yafee/WEB-INF/ 这个目录下面有web.xml文件
<servlet-name>yyy</servlet-name>
<servlet-class>yafeeservlet</servlet-class> </servlet>servlet必须放在包里面 必须建一个包 路径要加上包名 望楼主改正