String與InputStream相互轉換

1.String 轉 InputStream

String str = "String與InputStream相互轉換";
InputStream   in_nocode   =   new   ByteArrayInputStream(str.getBytes());   
InputStream   in_withcode   =   new   ByteArrayInputStream(str.getBytes("UTF-8")); <strong> </strong>

2.InputStream 轉 String

方法一：

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();   
 
    }   

方法二：

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(); 
} 

方法三：

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(); 
}

轉載自：http://zhmeup.iteye.com/blog/1913576