问题描述
我是完全新的编写Java Servlet的,和我挣扎着爬一个简单的的HelloWorld
例如正常工作。
I am completely new to writing a Java Servlet, and am struggling to get a simple HelloWorld
example to work properly.
HelloWorld.java类是:
The HelloWorld.java class is:
package crunch;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
public class HelloWorld extends HttpServlet {
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
PrintWriter out = response.getWriter();
out.println("Hello World");
}
}
我Tomcat运行V7.0,并且已经阅读类似的问题,有指改变响应调用
Servlet映射的web.xml
C $ C>部分,这一部分其实并不在我的存在,当我加入这同样的问题仍时有发生。
I am running Tomcat v7.0, and have already read similar questions, with responses referring to changing the invoker
servlet-mapping
section in web.xml
, this section actually doesn't exist in mine, and when I added it the same problem still occurred.
推荐答案
试试这个(如果Java EE V6)
try this (if the Java EE V6)
package crunch;
import java.io.*;
import javax.servlet.*;
import javax.servlet.http.*;
@WebServlet(name="hello",urlPatterns={"/hello"})
public class HelloWorld extends HttpServlet {
public void doGet(HttpServletRequest request,
HttpServletResponse response)
throws ServletException, IOException {
PrintWriter out = response.getWriter();
out.println("Hello World");
}
}
现在达到通过 http://127.0.0.1:8080/yourapp/hello
其中8080为默认的Tomcat端口,yourapp是你applciation的上下文名称
where 8080 is default tomcat port, and yourapp is the context name of your applciation
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