String and InputStream convert each other

1.String to InputStream

String str = "string-to-inputstream conversion";

InputStream In_nocode = new Bytearrayinputstream (Str.getbytes ());
InputStream In_withcode = new Bytearrayinputstream (str.getbytes ("UTF-8"));

2.InputStream to String

Here are a few methods.

Method 1:

Public String convertstreamtostring (InputStream is) {

BufferedReader reader = new BufferedReader (new InputStreamReader (IS));

StringBuilder sb = new StringBuilder ();

String line = null;

try {

while (line = Reader.readline ()) = null) {

Sb.append (line + "/n");

}

} catch (IOException e) {

E.printstacktrace ();

} finally {

try {

Is.close ();

} catch (IOException e) {

E.printstacktrace ();

}

}

return sb.tostring ();

}

Method 2:

public   string   inputstream2string   (inputstream   in)    throws   ioexception   {
        stringbuffer    out   =   new   stringbuffer ();
        byte[]   b   =   new   byte[ 4096];
        for   (int   n;   (n   =    In.read (b))   !=  -1;)    {
                 out.append (new   String (b,   0,    N));
       }
        return   out.tostring ();
} 

Method 3:
public static String inputstream2string (InputStream is) throws ioexception{
Bytearrayoutputstream BAOs = new Bytearrayoutputstream ();
int i=-1;
while ((I=is.read ())!=-1) {
Baos.write (i);
}
return baos.tostring ();
}

String and InputStream convert each other