String and InputStream are converted to each other

1.String to InputStream

String str = "string and InputStream are converted to each other";

InputStream in = new Bytearrayinputstream (Str.getbytes ());

InputStream in = new Bytearrayinputstream (str.getbytes ("UTF-8"));

It is recommended that this method be used to specify that code is not easy to garbled.

2.InputStream to String

Here are a few ways to do this.

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 ();  
}