直接上代码：

复制代码 代码如下:
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
*
* <p>
* ClassName ShowChineseInUnicodeBlock
* </p>
* <p>
* Description 提供判断字符串是中文或者是英文的一种思路
* </p>
*
* @author wangxu wangx89@126.com
* <p>
* Date 2014-9-16 下午06:45:35
* </p>
* @version V1.0
*
*/
public class ShowChineseInUnicodeBlock {
public static void main(String[] args) {
String str = "我爱你，！？（）：；“”、。";
char[] charArray = str.toCharArray();
for (int i = 0; i < charArray.length; i++) {
isChinese(charArray[i]);
}
String chinese = "中国god damn";
System.out.println(isContainChinese(chinese));
String english = "dfafdabac";
System.out.println(isEnglish(english));
}

/**
*
* <p>
* Title: isChinese
* </p>
* <p>
* Description: 该函数就用来打印一些字符看看属于什么
* </p>
*
* @param c
*
*/
public static void isChinese(char c) {
Character.UnicodeBlock ub = Character.UnicodeBlock.of(c);
if (ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS) {
System.out.println(c + "--CJK_UNIFIED_IDEOGRAPHS");
} else if (ub == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS) {
System.out.println(c + "--CJK_COMPATIBILITY_IDEOGRAPHS");
} else if (ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A) {
// CJK Unified Ideographs Extension WikipediaUnicode扩展汉字
// CJK Unified Ideographs Extension A 中日韩统一表意文字扩展区A ; 表意文字扩充A
// CJK Unified Ideographs Extension B 中日韩统一表意文字扩展区B
System.out.println(c + "--CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A");
} else if (ub == Character.UnicodeBlock.GENERAL_PUNCTUATION) {// 通用标点
System.out.println(c + "--GENERAL_PUNCTUATION");

} else if (ub == Character.UnicodeBlock.CJK_SYMBOLS_AND_PUNCTUATION) {
System.out.println(c + "--CJK_SYMBOLS_AND_PUNCTUATION");

} else if (ub == Character.UnicodeBlock.HALFWIDTH_AND_FULLWIDTH_FORMS) {
System.out.println(c + "--HALFWIDTH_AND_FULLWIDTH_FORMS");

}
}

public static boolean isEnglish(String charaString) {
return charaString.matches("^[a-zA-Z]*");
}

public static boolean isContainChinese(String str) {// 检测是否包含中文
String regEx = "[\\u4E00-\\u9FA5]+";
Pattern p = Pattern.compile(regEx);
Matcher m = p.matcher(str);
if (m.find()) {
return true;
} else {
return false;
}
}
}