WriteOver.jsp ＜html＞ ＜head＞ ＜title＞Write over a file＜/title＞ ＜/head＞ ＜body bgcolor="#000000"＞ ＜jsp:useBean id="writer" class="WriteOver" scope="request"＞ ＜jsp:setProperty name="writer" property="path" value="/path/to/afile.txt" /＞ ＜jsp:setProperty name="writer" property="something" value="Something already set as a property in WriteOver" /＞ ＜/jsp:useBean＞ ＜h3＞Write to the file＜/h3＞ ＜p＞ ＜% writer.setSomething("Something to write to the file"); out.print(writer.getSomething()); out.print(writer.writeSomething()); %＞ ＜/p＞ ＜/body＞ ＜/html＞ WriteOver.Java import Java.io.*; public class WriteOver { private String path; private String something; // WriteOver构造器，用于初始化参数 public WriteOver() { path = null; something = "Default message"; } //设置文件路径 public void setPath(String apath) { path = apath; } //获取路径参数 public String getPath() { return path; } //获取something参数值 public void setSomething(String asomething) { something = asomething; } //设置something参数 public String getSomething() { return something; } //将something参数的值写入paht指定的文件中 public String writeSomething() { try { File f = new File(path); PrintWriter out = new PrintWriter(new FileWriter(f)); out.print(this.getSomething() + "\n"); out.close(); return "Alles ist Gut."; } catch (IOException e) { return e.toString(); } } } |
