输入输出流String间的转换

来自：http://wuhongyu.iteye.com/blog/806791

1.String  to  inputStream

InputStream is = new ByteArrayInputStream(string.getBytes());

　　

2.InputStream to String

　　　　　　

ByteArrayOutputStream baos = new ByteArrayOutputStream();
int i;
while ((i = is.read()) != -1) {
    baos.write(i);
}
String str = baos.toString();
System.out.println(str);

　3.String写入OutputStream

OutputStream os = System.out;
os.write(string.getBytes());

　4.OutputStream写入String

ByteArrayOutputStream baos = new ByteArrayOutputStream();
//向OutPutStream中写入，如 message.writeTo(baos);
String str = baos.toString();