初学 Java Web（四） ServletConfig接口获取Servlet初始化参数

通过重写public void init(ServletConfig config)函数，实现获取Servlet初始化的参数，并从控制台输出。

Servlet1.javaimport java.io.IOException;
import javax.servlet.ServletConfig;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebInitParam;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
* Servlet implementation class Servlet1
*/
@WebServlet(name = "/Servlet1", urlPatterns = { "/Servlet1" }, initParams = {
@WebInitParam(name = "name", value = "guosiqi"), })
public class Servlet1 extends HttpServlet {
private static final long serialVersionUID = 1L;

/**
* @see HttpServlet#HttpServlet()
*/
public Servlet1() {
super();
// TODO Auto-generated constructor stub
}

public void init(ServletConfig config) {
String name1 = config.getInitParameter("name");
System.out.println(name1);
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException { }
/**
* @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse
* response)
*/
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
// TODO Auto-generated method stub
doGet(request, response);
}

}