场景javascript
在VS下使用JsonCpp把中文赋值给Json::Value后toStyledString()打印，中文字已经变成\u开始的字符，并且仍是不许确的unicode码,在Linux环境下没有这个问题。中文乱码显示以下: "VehicleBrand" : "\u5927\u4f17"java
解决方案json
打开jsoncpp源码jsoncpp.cpp文件，找到valueToQuotedStringN函数修改以下：api
static JSONCPP_STRING valueToQuotedStringN(const char* value, unsigned length) {
if (value == NULL)
return "";
if (!isAnyCharRequiredQuoting(value, length))
return JSONCPP_STRING("\"") + value + "\"";
// We have to walk value and escape any special characters.
// Appending to JSONCPP_STRING is not efficient, but this should be rare.
// (Note: forward slashes are *not* rare, but I am not escaping them.)
JSONCPP_STRING::size_type maxsize = length * 2 + 3; // allescaped+quotes+NULL
JSONCPP_STRING result;
result.reserve(maxsize); // to avoid lots of mallocs
result += "\"";
char const* end = value + length;
for (const char* c = value; c != end; ++c) {
switch (*c) {
case '\"':
result += "\\\"";
break;
case '\\':
result += "\\\\";
break;
case '\b':
result += "\\b";
break;
case '\f':
result += "\\f";
break;
case '\n':
result += "\\n";
break;
case '\r':
result += "\\r";
break;
case '\t':
result += "\\t";
break;
// case '/':
// Even though \/ is considered a legal escape in JSON, a bare
// slash is also legal, so I see no reason to escape it.
// (I hope I am not misunderstanding something.)
// blep notes: actually escaping \/ may be useful in javascript to avoid </
// sequence.
// Should add a flag to allow this compatibility mode and prevent this
// sequence from occurring.
default:
{
/*
unsigned int cp = utf8ToCodepoint(c, end);
// don't escape non-control characters
// (short escape sequence are applied above)
if (cp < 0x80 && cp >= 0x20)
result += static_cast<char>(cp);
else if (cp < 0x10000) { // codepoint is in Basic Multilingual Plane
result += "\\u";
result += toHex16Bit(cp);
} else { // codepoint is not in Basic Multilingual Plane
// convert to surrogate pair first
cp -= 0x10000;
result += "\\u";
result += toHex16Bit((cp >> 10) + 0xD800);
result += "\\u";
result += toHex16Bit((cp & 0x3FF) + 0xDC00);
}
*/
result += *c;
} break;
}
}
result += "\"";
return result;
}
修改default分支的代码
app