jsp+serverlet的用法 .: NOVOTS KMS
电脑杂谈 发布时间：2016-12-19 06:00:53 来源：网络整理<body>
<form action="servlet/Myserverlet" method="get">//这个action很重要，路径一定不要写错
<input type=text name="name"></input>
<input type="submit" value="确定"></input>
</form>
</body>
2、serverlet代码：
package hall;
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 Myserverlet extends HttpServlet {
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
PrintWriter out = response.getWriter();
out.print(" This is ");
out.println(request.getParameter("name"));
out.flush();
out.close();
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
PrintWriter out = response.getWriter();
out.print(" This is ");
out.println(request.getParameter("name"));
out.flush();
out.close();
}
}
解释：doGet方法和doPost方法，表示将要选择哪种方式来处理jsp页面提交过来的参数，
jsp页面method="get",就采用doget方法处理,method="post"就采用dopost方法处理。
3、web.xml配置
<servlet>
<servlet-name>Myserverlet</servlet-name>
<servlet-class>hall.Myserverlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>Myserverlet</servlet-name>
<url-pattern>/servlet/Myserverlet</url-pattern>//注意这个地方和jsp实际路径的不同，jsp少个"/".
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