WriteOver.Jsp
$#@60;html$#@62; $#@60;head$#@62; $#@60;title$#@62;写一个文件$#@60;/title$#@62; $#@60;/head$#@62; $#@60;body bgcolor="#000000"$#@62; $#@60;%--创建javabean并设置属性 --%$#@62; $#@60;jsp:useBean id="writer" class="WriteOver" scope="request"$#@62; $#@60;jsp:setProperty name="writer" property="path" value="/test/afile.txt" /$#@62; $#@60;jsp:setProperty name="writer" property="something" value="初始化somthing属性" /$#@62; $#@60;/jsp:useBean$#@62;
$#@60;h3$#@62;写一个文件$#@60;/h3$#@62;
$#@60;p$#@62; $#@60;%--设置要写入的字符串 --%$#@62; $#@60;% writer.setSomething("写点东西到文件"); %$#@62; $#@60;%--读取上面设置的字符串 --%$#@62; $#@60;% out.print(writer.getSomething()); %$#@62; $#@60;%--调用writer的writeSomething方法写入文件并返回成功或者出错信息 --%$#@62; $#@60;% out.print(writer.writeSomething()); %$#@62;
$#@60;/p$#@62; $#@60;/body$#@62; $#@60;/html$#@62;
//WriteOver.java javabean文件 import java.io.*;
public class WriteOver { private String path; //文件路径 private String something;//写入的字符串 //初始化 public WriteOver() { path = null; something = "缺省文字"; } //设置文件路径 public void setPath(String apath) { path = apath; } //得到文件路径 public String getPath() { return path; } //得到字符串 public void setSomething(String asomething) { something = asomething; } //设置字符串 public String Something() { return something; } //写入字符串到文件中,成功则返回success字符串 public String writeSomething() { try { File f = new File(path); PrintWriter out = new PrintWriter(new FileWriter(f)); out.print(this.getSomething() + "\n"); out.close(); return "Success."; } catch (IOException e) { return e.toString(); } } } 为了对文件操作有全面了解,请看下一篇$#@60;$#@60;jsp文件操作之追加篇$#@62;$#@62;。
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