Okhttp:Fatal Exception: java.lang.IllegalArgumentException: Unexpected char 0x4e00 at 25 in header v
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异常为:
情景描述:Fatal Exception: java.lang.IllegalArgumentException: Unexpected char 0x4e00 at 25 in header value: ****at com.squareup.okhttp.Headers$Builder.checkNameAndValue(Headers.java:295) at com.squareup.okhttp.Headers$Builder.add(Headers.java:245) at com.squareup.okhttp.Request$Builder.addHeader(Request.java:197)
在利用okhttp与服务端进行交互时,服务端需要UA(UserAgent)对客户端进行区分识别,然而,有些国产手机的一些标示字段是中文,比如一加手机,这样在把带有中文的UA当做header传递给okhttp时就会出现上面的错误,原因是okhttp对header进行了校验,校验规则如下char c = value.charAt(i); if (c <= '\u001f' || c >= '\u007f') { throw new IllegalArgumentException(Util.format( "Unexpected char %#04x at %d in %s value: %s", (int) c, i, name, value)); }
解决办法:
解决办法很简单,就是对ua进行过滤,并try catch,如下(try catch就不写了)StringBuffer stringBuffer = new StringBuffer(); for (int i = 0, length = ua.length(); i < length; i++) { char c = ua.charAt(i); if (c <= '\u001f' || c >= '\u007f') { stringBuffer.append(String.format("\\u%04x", (int) c)); } else { stringBuffer.append(c); } } ua = stringBuffer.toString();
情景描述:
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