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Question

我想從這個專有

private String getSecWebSocketAccept(String secKey) 
    throws UnsupportedEncodingException, NoSuchAlgorithmException { 
    String guid = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"; 
    secKey += guid; 
    MessageDigest md = MessageDigest.getInstance("SHA-1"); 
    md.update(secKey.getBytes("ISO-8859-1"), 0, secKey.length()); 
    byte[] shalHash = md.digest(); 
    BASE64Encoder encoder = new BASE64Encoder(); 
    return encoder.encode(shalHash); 
} 

編碼改爲Apache的版本

org.apache.commons.codec.binary.Base64

但它只是不會工作，當我嘗試

private String getSecWebSocketAccept(String secKey) 
    throws UnsupportedEncodingException, NoSuchAlgorithmException { 
    String guid = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"; 
    secKey += guid; 
    MessageDigest md = MessageDigest.getInstance("SHA-1"); 
    md.update(secKey.getBytes("ISO-8859-1"), 0, secKey.length()); 
    byte[] shalHash = md.digest(); 
    org.apache.commons.codec.binary.Base64.encodeBase64 encoder = new org.apache.commons.codec.binary.Base64.encodeBase64(); 
    return encoder.encode(shalHash); 
} 

這是錯誤我得到

C:\xampp\htdocs\html>javac SimpleServer.java 
SimpleServer.java:87: error: cannot find symbol 
       org.apache.commons.codec.binary.Base64.encodeBase64 encoder = ne 
w org.apache.commons.codec.binary.Base64.encodeBase64(); 
                ^
    symbol: class encodeBase64 
    location: class Base64 
SimpleServer.java:87: error: cannot find symbol 
       org.apache.commons.codec.binary.Base64.encodeBase64 encoder = ne 
w org.apache.commons.codec.binary.Base64.encodeBase64(); 

             ^
    symbol: class encodeBase64 
    location: class Base64 
2 errors 

Answer 1

org.apache.commons.codec.binary.Base64.encodeBase64是一個靜態方法。使用這樣的：

byte[] encoded = Base64.encodeBase64(shalHash); 

在additon，你可以使用org.apache.commons.codec.digest.DigestUtils.sha1(byte[] data)：

byte[] shalHash = DigestUtil.sha1(secKey.getBytes("ISO-8859-1"));