package priv.lwx.javaex.servlet_demo.web.servletcontext;
/*** 获取文件在服务器主机的真实路径** @author liaowenxiong* @date 2022/1/12 15:34*/import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
import java.net.URL;@WebServlet("/servlet_context_demo02")
public class ServletContextDemo02 extends HttpServlet {@Overrideprotected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {this.doPost(request, response);}@Overrideprotected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {ServletContext context = this.getServletContext();// 通过ServletContext对象获取文件的真实路径String realPath = context.getRealPath("/WEB-INF/classes/druid.properties");System.out.println(realPath); // /Users/liaowenxiong/Documents/IdeaProjects/java-exercises/out/artifacts/servlet_demo_war_exploded/WEB-INF/classes/druid.properties// 通过类加载器获取文件的真实路径URL url = ServletContextDemo02.class.getClassLoader().getResource("druid.properties");System.out.println(url);String path = url.getPath();System.out.println(path);}
}