Java全半角轉換代碼

    /**


 * StringUtils 
 *  
 */  
public class StringUtils {  

    /** 
     * 判斷字符串是否為空或空字符串 
     * @param str 原字符串 
     * @return 
     */  
    public static boolean isEmpty(String str) {  
        return str == null || "".equals(str);  
    }  

    /** 
     * 全角轉半角: 
     * @param fullStr 
     * @return 
     */  
    public static final String full2Half(String fullStr) {  
        if(isEmpty(fullStr)){  
            return fullStr;  
        }  
        char[] c = fullStr.toCharArray();  
        for (int i = 0; i < c.length; i++) {  
            if (c[i] >= 65281 && c[i] <= 65374) {  
                c[i] = (char) (c[i] - 65248);  
            } else if (c[i] == 12288) { // 空格  
                c[i] = (char) 32;  
            }  
        }  
        return new String(c);  
    }  

    /** 
     * 半角轉全角 
     * @param halfStr 
     * @return 
     */  
    public static final String half2Full(String halfStr) {  
        if(isEmpty(halfStr)){  
            return halfStr;  
        }  
        char[] c = halfStr.toCharArray();  
        for (int i = 0; i < c.length; i++) {  
            if (c[i] == 32) {  
                c[i] = (char) 12288;  
            } else if (c[i] < 127) {  
                c[i] = (char) (c[i] + 65248);  
            }  
        }  
        return new String(c);  
    }  
}  </pre></span></strong></span>