Servlet-config.properteis資源文件讀取操作
阿新 • • 發佈:2018-04-17
Servlet config prope
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對象加載src/config.properteis資源文件 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) {// 偶數行 pw.write("<tr style=‘color:red‘>"); } else {// 奇數行 pw.write("<tr style=‘color:blue‘>"); } for (int j = 0; j < cols; j++) { pw.write("<td>"); pw.write("◇"); pw.write("</td>"); } pw.write("</tr>"); } pw.write("</table>"); } }
Servlet-config.properteis資源文件讀取操作