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>");
	}

}