JAVA 判断字符长度

/**
     * 判断姓名字符长度
     * 字符串为空返回0；有中文返回中文字符数；无中文返回2
     * @param CustomerSn
     * @return
     */
    private Integer getNameLength(Integer CustomerSn){
        Integer sealWidth = 32;
        CustomerDto customerDto = customerService.getCustomerBySnForEsign(CustomerSn);
        String custSurname = customerDto.getCustSurname();
        String custName = customerDto.getCustName();
        Integer SurnameLen = this.count(custSurname);
        Integer NameLen = this.count(custName);
        Integer length = SurnameLen+NameLen;
        if(length>=0 && length<=4){
            sealWidth = length*16;
        }else if(length.equals(5) ||length.equals(6)){
            sealWidth = 3*16;
        }
        return sealWidth;
    }
    
    
    /***
     * 统计字符串中中文，英文，数字，空格等字符个数
     * @param str 需要统计的字符串
     */
    private Integer count(String str) {
        int chCharacter = 0;//中文字符
        int enCharacter = 0;//英文字符
        int spaceCharacter = 0;//空格
        int numberCharacter = 0;//数字
        int otherCharacter = 0;//其他字符
        
        if (null == str || str.equals("")) {
            return 0;
        }
        
        for (int i = 0; i < str.length(); i++) {
            char tmp = str.charAt(i);
            if ((tmp >= 'A' && tmp <= 'Z') || (tmp >= 'a' && tmp <= 'z')) {
                enCharacter ++;
            } else if ((tmp >= '0') && (tmp <= '9')) {
                numberCharacter ++;
            } else if (tmp ==' ') {
                spaceCharacter ++;
            } else if (isChinese(tmp)) {
                chCharacter ++;
            } else {
                otherCharacter ++;
            }
        }
        logger.info("字符串:" + str + " "+"中文字符有:" + chCharacter+"英文字符有:" + enCharacter+"数字有:" + numberCharacter+"空格有:" + spaceCharacter+"其他字符有:" + otherCharacter);
        if(chCharacter>0){
            return chCharacter;
        }else{
            return 1;
        }
    }
    
    private boolean isChinese(char ch) {
        //获取此字符的UniCodeBlock
        Character.UnicodeBlock ub = Character.UnicodeBlock.of(ch);
        //  GENERAL_PUNCTUATION 判断中文的“号  
        //  CJK_SYMBOLS_AND_PUNCTUATION 判断中文的。号  
        //  HALFWIDTH_AND_FULLWIDTH_FORMS 判断中文的，号 
        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;
    }