【java】获取当前环境属性及编码乱码示例

package 字符编码;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.UnsupportedEncodingException;

public class TestGetProperties {
    public static void main(String[] args) throws UnsupportedEncodingException, IOException {
        System.getProperties().list(System.out);//输出当前环境属性
        File file=new File("D:"+File.separator+"test.txt");
        OutputStream out=new FileOutputStream(file);
        out.write("黄山黄河长江长城".getBytes("UTF-8"));//无乱码
        out.write("黄山黄河长江长城".getBytes("ISO8859-1"));//有乱码
        out.close();
    }
}