Question

java去掉字符串中的中文,但要保留空格

String=“毛紫薇 Lagerstroemia villosa Wall. ex Kurz 中国植物图像库”；
想得到的结果是“Lagerstroemia villosa Wall. ex Kurz” 该如何获得。

Answer 1

/**
     * 判断中文字符
     * 
     * @param oneChar
     * @return true-是中文
     * @author zhaigx
     * @date 2013-7-11
     */
    public static boolean checkCNChar(char oneChar) {
        if ((oneChar >= '\u4e00' && oneChar <= '\u9fa5')
                || (oneChar >= '\uf900' && oneChar <= '\ufa2d'))
            return true;
        return false;
    }

    public static String deleteCNChar(String source) {
        char[] cs = source.toCharArray();
        int length= cs.length;
        char [] buf = new char[length];
        for (int i = 0; i <length; i++) {
            char c = cs[i];
            if (!checkCNChar(c)) {
                buf[i] = c;
            }
        }
        String ret = new String(buf);
        return ret.trim();
    }

    public static void main(String[] args) {
        String string = "毛紫薇 Lagerstroemia villosa Wall. ex Kurz 中国植物图像库";
        string = deleteCNChar(string);
        System.out.println(string);
    }

Answer 2

public static void main(String[] args) {
		String string = "毛紫薇 Lagerstroemia villosa Wall. ex Kurz 中国植物图像库";
		string = string.replaceAll("(\\s[\u4E00-\u9FA5]+)|([\u4E00-\u9FA5]+\\s)", "");
		System.out.println("[" + string + "]");
	}

[Lagerstroemia villosa Wall. ex Kurz]

Answer 3

// 字符操作

public class StringOperator {

public static void main(String[] args) {
// String=“毛紫薇 Lagerstroemia villosa Wall. ex Kurz 中国植物图像库”；
// 想得到的结果是“Lagerstroemia villosa Wall. ex Kurz” 该如何获得。
String srcString = "毛紫薇 Lagerstroemia villosa Wall. ex Kurz 中国植物图像库";
StringBuffer buffer = new StringBuffer("");
for (int i = 0; i < srcString.length(); i++) {
char c = srcString.charAt(i);
if (!isChinese(c)) {
buffer.append(c);
}
}
// 打印得到的字符串，但要注意，如果你要去掉字符串两端的空格，加一句 buffer.trim();.
System.out.println(buffer);
}

// 根据Unicode编码完美的判断中文汉字和符号
private 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.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_B

|| ub == Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION

|| ub == Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS

|| ub == Character.UnicodeBlock.GENERAL_PUNCTUATION) {

return true;

}

return false;

}
}

Answer 4

/**
*
*
*去汉字
*/

private static String countChar(String itemlife)
{

String regEx = "[\\u4e00-\\u9fa5]";

Pattern p = Pattern.compile(regEx);
Matcher m = p.matcher(itemlife);

return m.replaceAll("");
}