项目都做完了，领导要求国际化？？？？--JAVA后端篇

springboot项目国际化相信各位小伙伴都会，很简单，但是怎么项目都做完了，领导却要求国际化文件就很头疼了

国际化的SpringBoot代码：

第一步：创建工具类

java 复制代码

/**
 * 获取i18n资源文件
 *
 * @author bims
 */
public class MessageUtils
{
    /**
     * 根据消息键和参数 获取消息 委托给spring messageSource
     *
     * @param code 消息键
     * @param args 参数
     * @return 获取国际化翻译值
     */
    public static String message(String code, Object... args)
    {
        MessageSource messageSource = SpringUtils.getBean(MessageSource.class);
        return messageSource.getMessage(code, args, LocaleContextHolder.getLocale());
    }

    public static String message(String code, Locale locale, Object... args)
    {
        try{
            //SpringUtils
            MessageSource messageSource = SpringUtils.getBean(MessageSource.class);
            if(locale==null){
                locale=LocaleContextHolder.getLocale();
            }
            return messageSource.getMessage(code, args,locale );
        }catch (Exception e){
            return code;
        }
    }
}

对于Bean的处理在SpringUtils中是这样的：

java 复制代码

    /**
     * 获取类型为requiredType的对象
     *
     * @param clz
     * @return
     * @throws org.springframework.beans.BeansException
     *
     */
    public static <T> T getBean(Class<T> clz) throws BeansException
    {
        T result = (T) beanFactory.getBean(clz);
        return result;
    }

第二步：配置yml

XML 复制代码

# Spring配置
spring:
  # 资源信息
  messages:
    # 国际化资源文件路径
    basename: static/i18n/message,static/i18n/store,static/i18n/menu

第三步：创建Python扫描工程--尽力了啊，有些实在匹配不上规则，大佬的话可以自己研究

python 复制代码

import os
import re

# 遍历目录及其子目录下的所有.java文件
def scan_java_files(root_dir):
    java_files = []
    for root, _, files in os.walk(root_dir):
        for file in files:
            if file.endswith('.java'):
                java_files.append(os.path.join(root, file))
    return java_files


# 判断是否为注释行
def is_comment_line(line):
    # 抓取每行的关键词，碰到返回的就翻译，这样拼装格式的可能不会翻译，自己研究吧
    return ((line.count("AjaxResult.")>0 or line.count("ajaxResult.")>0 or
            line.strip().startswith("throw new")) and not line.count(".format") >0 and not line.count('getErrorUS')>0)


def extract_outer_parentheses_parts(input_string):
    arrs = input_string.split("+");
    res = []
    for arr in arrs:
        if arr.strip().startswith('"') and arr.strip().endswith('"'):
            pass
        else:
            res.append(arr)
    return res

# 扫描并翻译Java工程中的中文字符
def translate_java_project(root_dir):
    java_files = scan_java_files(root_dir)
    translated_texts = {}
    translated_china_texts = {}
    leng = 0
    for java_file in java_files:
        # 去掉domian数据
        if java_file.count("domain") > 0:
            continue
        with open(java_file, 'r', encoding='utf-8') as file:
            content_lines = file.readlines()
        flag = 0
        flag2 = 0
        for line in content_lines:
            pattern = re.compile(r'[\u4e00-\u9fff]')
            # 查找字符串中是否有中文字符
            match = re.search(pattern, line)
            if is_comment_line(line) and match:
                flag2 = 1
            if "com.xxx.common.utils.MessageUtils" in line:
                flag = 1
        # 更新Java文件中的中文字符为国际化键
        with open(java_file, 'w', encoding='utf-8') as file:
            for line in content_lines:
                if flag == 0 and flag2 == 1 and "package" in line:
                    line += '\n' + "import com.xxx.common.utils.MessageUtils;"
                if is_comment_line(line):
                    pattern = re.compile(r'[\u4e00-\u9fff]')
                    # 查找字符串中是否有中文字符
                    match = re.search(pattern, line)
                    if match:
                        arrs = get_params(line)
                        n = len(arrs)
                        for i in range(n):
                            chinese_chars = re.findall(r'([\u4e00-\u9fa5]+)', arrs[i])
                            if len(chinese_chars) > 0:
                                chinese_str = ''.join(chinese_chars)
                                chinese_text = convert_string(arrs[i])
                                if chinese_str not in translated_china_texts:
                                    translated_china_texts[chinese_str] = chinese_text
                                str = 'MessageUtils.message("' + chinese_str + '"'
                                params = extract_outer_parentheses_parts(arrs[i])
                                if len(params) > 0:
                                    for param in params:
                                        str += ("," + param)
                                str += ")"
                                arrs[i] = str
                                flag2 = 1
                        print(arrs)
                        print("变更前：" + line)
                        match = re.search(r'\((.*)\)', line)
                        if match:
                            content_inside_brackets = match.group(1)
                            line = line.replace(content_inside_brackets, ",".join(arrs))
                            print("变更后：" + line)
                file.write(line)
    # 写入i18n文件
    with open('messages.text', 'w', encoding='utf-8') as i18n_file:
        for chinese_text, translated_text in translated_china_texts.items():
            i18n_file.write(f'{chinese_text}={translated_text}\n')

    with open('messages_zh_cn.text', 'w', encoding='utf-8') as i18n_file:
        for chinese_text, translated_text in translated_china_texts.items():
            i18n_file.write(f'{chinese_text}={translated_text}\n')

    with open('messages_en_us.text', 'w', encoding='utf-8') as i18n_file:
        for chinese_text, translated_text in translated_texts.items():
            i18n_file.write(f'{chinese_text}=\n')


def get_params(method_string):
    match = re.search(r'\((.*)\)', method_string)
    if match:
        content_inside_brackets = match.group(1)
        arr = content_inside_brackets.split(",")
        indices = [i for i, item in enumerate(arr) if item.count('"') % 2 != 0]
        arr2 = [indices[i:i + 2] for i in range(0, len(indices), 2)]
        for start, end in arr2:
            corrected_str = ','.join(arr[start:end + 1])
            arr[start:end + 1] = [corrected_str] * (end + 1 - start)
        arr = [x for i, x in enumerate(arr) if x not in arr[:i]]
        return arr
    else:
        return []
def convert_string(input_string):
    arrs = input_string.split("+");
    input_string = ""
    index = 0
    for arr in arrs:
        print(arr)
        if arr.strip().startswith('"') and arr.strip().endswith('"'):
            input_string += arr.replace('"', '')
        else:
            input_string+='{'+(str(index))+"}"
            index += 1
    return input_string

def get_line(line,translated_china_texts,flag2):
    arrs = get_params(line)
    n = len(arrs)
    for i in range(n):
        chinese_chars = re.findall(r'([\u4e00-\u9fa5]+)', arrs[i])
        if len(chinese_chars) > 0:
            chinese_str = ''.join(chinese_chars)
            chinese_text = convert_string(arrs[i])
            if chinese_str not in translated_china_texts:
                translated_china_texts[chinese_str] = chinese_text
            str = 'MessageUtils.message("' + chinese_str + '"'
            params = extract_outer_parentheses_parts(arrs[i])
            if len(params) > 0:
                for param in params:
                    str += ("," + param)
            str += ")"
            arrs[i] = str
            flag2 = 1
    print(arrs)
    print("变更前：" + line)
    match = re.search(r'\((.*)\)', line)
    if match:
        content_inside_brackets = match.group(1)
        line = line.replace(content_inside_brackets,",".join(arrs))
        print("变更后：" + line)
if __name__ == '__main__':
    translate_java_project('G:\\xxx\\xxx')
    # input_string = 'e.getA(sds)+"案件,比,萨饼"+e.getA(sds)+e.getB(asa)+e.getC(asd)'
    # print(convert_string('"运行时异常：" + serviceException.getServiceMsg()'))
    # print(extract_outer_parentheses_parts('500,"运行时异常：" + serviceException.getServiceMsg()'))
    # print(get_params('  throw new Exception(StringUtils.format("文件名称({})非法，不允许下载。 ", fileName));'))
    # print(get_line('                throw new Exception(StringUtils.format("文件名称({})非法，不允许下载。 ", fileName));',{},flag2=0))
    # print(has_unmatched_parentheses("wesf()csd"))
    # get_test('throw new ServiceException("500", "未获取到字段缓存数据");')

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