?? firstservlet2.java
字號:
package ch05;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.*;
import java.util.*;
//Servlet生命周期演示
public class FirstServlet2 extends HttpServlet {
private static final String CONTENT_TYPE = "text/html; charset=GBK";
private String user;
//讀取初始化參數
public void init() throws ServletException {
super.init();
user=this.getServletConfig().getInitParameter("user");
System.out.println("Servlet已經成功初始化");
}
//處理HTTP請求
protected void service(HttpServletRequest request, HttpServletResponse response) throws
ServletException, IOException {
response.setContentType(CONTENT_TYPE);
PrintWriter out = response.getWriter();
out.println("<html>");
out.println("<head><title>FirstServlet</title></head>");
out.println("<body bgcolor=\"#ffffff\">");
out.println("<H1>加載后初始化參數user="+user+"</H1>");
out.println("</body>");
out.println("</html>");
out.close();
System.out.println("Servlet的service方法被執行了一次");
}
//清除資源
public void destroy() {
System.out.println("Servlet實例已經被釋放");
}
}
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