具体代码如下所示：
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/**
* 判断字符是否是中文
*
* @param c 字符
* @return 是否是中文
*/
public static boolean ischinese(char c) {
character.unicodeblock ub = character.unicodeblock.of(c);
if (ub == character.unicodeblock.cjk_unified_ideographs
|| ub == character.unicodeblock.cjk_compatibility_ideographs
|| ub == character.unicodeblock.cjk_unified_ideographs_extension_a
|| ub == character.unicodeblock.general_punctuation
|| ub == character.unicodeblock.cjk_symbols_and_punctuation
|| ub == character.unicodeblock.halfwidth_and_fullwidth_forms) {
return true;
}
return false;
}
/**
* 判断字符串是否是乱码
*
* @param strname 字符串
* @return 是否是乱码
*/
public static boolean ismessycode(string strname) {
pattern p = pattern.compile("\s*|t*|r*|n*");
matcher m = p.matcher(strname);
string after = m.replaceall("");
string temp = after.replaceall("\p{p}", "");
char[] ch = temp.trim().tochararray();
float chlength = ch.length;
float count = 0;
for (int i = 0; i < ch.length; i++) {
char c = ch[i];
if (!character.isletterordigit(c)) {
if (!ischinese(c)) {
count = count + 1;
}
}
}
float result = count / chlength;
if (result > 0.4) {
return true;
} else {
return false;
}
}
public static void main(string[] args) {
system.out.println(ismessycode("ã©å¸â©ã©â¡âºã¥â¹â³"));
system.out.println(ismessycode("你好"));
}
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总结
以上所述是小编给大家介绍的java判断字符串是否含有乱码实例代码，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持！
原文链接：https://blog.csdn.net/albg_boy/article/details/83988152