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  • 使用URLEncoder、URLDecoder进行URL参数的转码与解码

    url后参数的转码与解码

    import java.net.URLDecoder;
    import java.net.URLEncoder;
    
    String strTest
    = "?=abc?中%1&2<3,4>"; strTest = URLEncoder.encode(strTest, "UTF-8"); System.out.println(strTest); strTest = URLDecoder.decode(strTest,"UTF-8"); System.out.println(strTest);

    执行结果:

    %3F%3Dabc%3F%E4%B8%AD%251%262%3C3%2C4%3E
    ?=abc?中%1&2<3,4>

    jdk相关说明:

    String java.net.URLEncoder.encode(String s, String enc) throws UnsupportedEncodingException
    
    Translates a string into application/x-www-form-urlencoded format using a specific encoding scheme. This method uses the supplied encoding scheme to obtain the bytes for unsafe characters.
    
    Note: The World Wide Web Consortium Recommendation states that UTF-8 should be used. Not doing so may introduce incompatibilites.
    
    Parameters:
        s String to be translated. 
        enc The name of a supported character encoding. 
    Returns:
        the translated String. 
    Throws:
        UnsupportedEncodingException - If the named encoding is not supported 
    Since:
        1.4 
    See Also:
        URLDecoder.decode(java.lang.String, java.lang.String)
    
     
    String java.net.URLDecoder.decode(String s, String enc) throws UnsupportedEncodingException
    
    Decodes a application/x-www-form-urlencoded string using a specific encoding scheme. The supplied encoding is used to determine what characters are represented by any consecutive sequences of the form "%xy".
    
    Note: The World Wide Web Consortium Recommendation states that UTF-8 should be used. Not doing so may introduce incompatibilites.
    
    Parameters:
        s the String to decode 
        enc The name of a supported character encoding. 
    Returns:
        the newly decoded String 
    Throws:
        UnsupportedEncodingException - If character encoding needs to be consulted, but named character encoding is not supported 
    Since:
        1.4 
    See Also:
        URLEncoder.encode(java.lang.String, java.lang.String)
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  • 原文地址:https://www.cnblogs.com/zhujiabin/p/4192186.html
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