Servlet-config.properteis资源文件读取操作

java文件

import java.io.FileInputStream;import java.io.IOException;import java.io.InputStream;import java.io.PrintWriter;import java.util.Properties;import javax.servlet.ServletContext;import javax.servlet.ServletException;import javax.servlet.http.HttpServlet;import javax.servlet.http.HttpServletRequest;import javax.servlet.http.HttpServletResponse;public class Emaldome4 extends HttpServlet {    public void doGet(HttpServletRequest request, HttpServletResponse response)            throws ServletException, IOException {        // 利用ServletContext对象加载src/config.properteis资源文件        ServletContext context = this.getServletContext();        InputStream is = context.getResourceAsStream("/res/config.properties");        Properties props = new Properties();        props.load(is);        // System.out.println(props.getProperty("email"));        int rows = Integer.parseInt(props.getProperty("row"));        int cols = Integer.parseInt(props.getProperty("col"));        System.out.println("row:" + props.getProperty("rows"));        System.out.println("col: " + props.getProperty("cols"));        PrintWriter pw = response.getWriter();        pw.write("<table border='1' align='center'>");        for (int i = 0; i < rows; i++) {            if (i % 2 == 0) {// 偶数行                pw.write("<tr style='color:red'>");            } else {// 奇数行                pw.write("<tr style='color:blue'>");            }            for (int j = 0; j < cols; j++) {                pw.write("<td>");                pw.write("&#x25C7;");                pw.write("</td>");            }            pw.write("</tr>");        }        pw.write("</table>");    }}