ServletContext域演示

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本文介绍了一个简单的Servlet示例，展示了如何使用ServletContext对象获取属性值。通过getServletContext()方法获取上下文对象，并读取预设的apple属性。

package com.itheima;

import java.io.IOException;

import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
 * ServletContext域演示
 */
public class Demo3Servlet extends HttpServlet {

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		ServletContext context = this.getServletContext();
		String v = (String) context.getAttribute("apple");
		System.out.println(v);
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		doGet(request, response);
	}

}