我写了个最简单的helloworld:
package brick0906;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
public class ServletText extends HttpServlet{
public void doGet(HttpServletRequest request,HttpServletResponse response) throws IOException,ServletException{
PrintWriter out=response.getWriter();
out.println("hello world");
}
}就是这样,然后我把那class文件放到F:\jakarta-tomcat-5.0.28\webapps\ROOT\WEB-INF\classes里面,然后又修改了web.xml:
<servlet>
<servlet-name>ServletText</servlet-name>
<servlet-class>ServletText</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>ServletText</servlet-name>
<url-pattern>/servlet/*</url-pattern>
</servlet-mapping>在我输入http://localhost:8888/servlet/ServletText的时候就出现了500的错误,显示如下:
java.lang.NoClassDefFoundError: ServletText (wrong name: brick0906/ServletText)我在网上查了好长的时间也找不出的所以然来,请个位帮帮忙解决一下!
package brick0906;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
public class ServletText extends HttpServlet{
public void doGet(HttpServletRequest request,HttpServletResponse response) throws IOException,ServletException{
PrintWriter out=response.getWriter();
out.println("hello world");
}
}就是这样,然后我把那class文件放到F:\jakarta-tomcat-5.0.28\webapps\ROOT\WEB-INF\classes里面,然后又修改了web.xml:
<servlet>
<servlet-name>ServletText</servlet-name>
<servlet-class>ServletText</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>ServletText</servlet-name>
<url-pattern>/servlet/*</url-pattern>
</servlet-mapping>在我输入http://localhost:8888/servlet/ServletText的时候就出现了500的错误,显示如下:
java.lang.NoClassDefFoundError: ServletText (wrong name: brick0906/ServletText)我在网上查了好长的时间也找不出的所以然来,请个位帮帮忙解决一下!
再就是,你的<url-pattern>/servlet/*</url-pattern>
应该改成<url-pattern>/servlet/ServletText</url-pattern>
这样成功了!!