writeappendfile.java

jsp动态网站开发技术与实践 电子工业出版社 随书附赠源代码

package com.chapter4;

import java.io.*; 

public class WriteAppendFile
{ 
	//类成员变量
	private String path;
	private String content;
	
	//初始化 
	public WriteAppendFile() 
	{ 
		this.path = ""; 
		this.content = "default content"; 
	} 
	
	//设置文件路径 
	public void setPath(String path)
	{ 
		this.path = path; 
	}
	
	//得到文件路径 
	public String getPath()
	{ 
		return this.path; 
	} 
	
	//设置要追加的字符串 
	public void setContent(String content)
	{ 
		this.content = content; 
	} 
	
	//得到要追加的字符串 
	public String getContent()
	{ 
		return this.content; 
	} 
	
	//追加字符串 
	public int writeContent()
	{ 
		int r = 0;
		try 
		{ 
			//创建文件path并写入content字符串，注意和写入篇的区别 
			FileWriter fWriter = new FileWriter(path,true); 
			PrintWriter out = new PrintWriter(fWriter); 
			out.print(this.content); 
			out.close(); 
			//关闭文件
			fWriter.close();			
		}
		catch (IOException e)
		{ 
			r = -1;
		}
		return r;
	} 	
}