我一直在摆弄我的程序，并且一直在使用允许 BASIC 身份验证的 urlread 的修改版本。问题是我必须将以下代码行包含到基本 urlread 函数中：
urlConnection.setRequestProperty('Authorization', 'Basic passphrase');
...其中密码是“user:pass”的 base64 编码字符串。如果我将密码直接放入该行的字符串中，程序将正常工作，但当我尝试连接以获得结果“基本密码”字符串时，麻烦就开始了。最初我只是：
['Basic', ' ', passphrase]
之后不起作用，我在命令窗口中进行了一些探索和实验。：
passphrase = 'somerandompassphrase';
teststr1 = ['Basic', ' ', passphrase];
teststr2 = ['Basic', ' ', 'somerandompassphrase'];
teststr3 = 'Basic somerandompassphrase';
strcmp(teststr1, teststr2)
strcmp(teststr1, teststr3)
strcmp(teststr2, teststr3)
输出为 1，或者每个都为 true（如预期）。但是，如果我采用“somerandompassphrase”的base64encode（即“c29tZXJhbmRvbXBhc3NwaHJhc2U=”）：
encoded = base64encode(passphrase);
teststr1 = ['Basic', ' ', encoded];
teststr2 = ['Basic', ' ', 'c29tZXJhbmRvbXBhc3NwaHJhc2U='];
strcmp(teststr1, teststr2)
输出为0或错误。但这不应该是真的吗？ base64encode 函数可以在此处找到。
即使经过快速测试：
strcmp(encoded, 'c29tZXJhbmRvbXBhc3NwaHJhc2U=')
输出仍然是 0。
请帮忙，我不知道发生了什么。
I've been fiddling around with my program and I've been using a modified version of urlread that allows for BASIC authentication. The problem is that I have to include the following line of code to the base urlread function:
urlConnection.setRequestProperty('Authorization', 'Basic passphrase');
...where passphrase is the a base64 encoded string of 'user:pass'. If I place the passphrase directly into the string on that line the program will work just fine, the trouble starts when I try to concatenate to get that resulting 'Basic passphrase' string. Initially I just had:
['Basic', ' ', passphrase]
After that did not work I did some exploring and experimenting around in the command window.:
passphrase = 'somerandompassphrase';
teststr1 = ['Basic', ' ', passphrase];
teststr2 = ['Basic', ' ', 'somerandompassphrase'];
teststr3 = 'Basic somerandompassphrase';
strcmp(teststr1, teststr2)
strcmp(teststr1, teststr3)
strcmp(teststr2, teststr3)
The output is 1, or true for each one (as expected). However if I take the base64encode of 'somerandompassphrase' (which is 'c29tZXJhbmRvbXBhc3NwaHJhc2U='):
encoded = base64encode(passphrase);
teststr1 = ['Basic', ' ', encoded];
teststr2 = ['Basic', ' ', 'c29tZXJhbmRvbXBhc3NwaHJhc2U='];
strcmp(teststr1, teststr2)
The output is 0, or false. Shouldn't it be true though? The base64encode function can be found here.
Even from a quick test of:
strcmp(encoded, 'c29tZXJhbmRvbXBhc3NwaHJhc2U=')
The output is still 0.
Please help, I have no idea what's going on.
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如此处所示，您还可以使用来自 base64 编码器编解码器/” rel="nofollow">Apache Commons Codec Java 库与 MATLAB 捆绑在一起，可在类路径中使用：
As shown here, you can also use the base64 encoder from the the Apache Commons Codec Java library which comes bundled with MATLAB and is available on the classpath:
实际上，我在发布问题之前就已经弄清楚了这一点，但我想我会继续并保留它，以防人们遇到与我相同的问题。
问题出在 base64encode 函数上。它会自动在字符串末尾添加换行符，导致 strcmp 函数返回 false。要解决此问题，您可以在 base64encode 函数中包含一个可选参数的参数，如果您放入空白字符串，则不会在其末尾添加换行符，从而使其正常工作。
I actually figured this out right before I posted the question, but I figured I'd go ahead and leave it up in case people run into the same problem as I did.
The problem is from the base64encode function. It automatically adds a newline character to the end of the string, causing the strcmp function to return false. To fix this you can include a parameter for the optional parameter to the base64encode function, if you put in a blank string it won't add a newline character to the end of it causing it to work.