appendfile.java

《jsp网站开发技术》中的源代码(清华大学出版社)

package appendfile;
import java.io.*;

public class AppendFile {
private String path;
private String something;//追加的字符串变量
//构造函数
public AppendFile() {
path = null;
something = "Default message";
} 
//设置文件路径
public void setPath(String apath) {
path = apath;
} 
//得到文件路径
public String getPath() {
return path;
} 
//设置要追加的字符串
public void setSomething(String asomething) {
something = asomething;
} 
//得到要追加的字符串
public String getSomething() {
return something;
} 
//追加字符串
public String writeSomething() {
try {
//创建文件path并写入something字符串，注意和写入篇的区别
FileWriter theFile = new FileWriter(path,true); 
PrintWriter out = new PrintWriter(theFile);
out.print(something + "\n");
out.close();
    //关闭文件并返回success字符串
theFile.close();
return "success!!";
} catch (IOException e) {
return e.toString();
}
}
}