11 changed files with 313 additions and 9 deletions
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package com.mh.user.annotation; |
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import java.lang.annotation.*; |
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/** |
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* @author LJF |
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* @version 1.0 |
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* @project mh_esi |
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* @description 数据字典注解 |
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* @date 2024-11-08 11:40:46 |
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*/ |
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@Target(ElementType.FIELD) |
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@Inherited |
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@Retention(RetentionPolicy.RUNTIME) |
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@Documented |
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public @interface FieldParam { |
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/** |
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* 字典值 |
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* @return |
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*/ |
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String value() default ""; |
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/** |
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* 字典类型 |
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* @return |
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*/ |
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String type() default ""; |
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/** |
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* 字典标签 |
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* @return |
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*/ |
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String label() default ""; |
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/** |
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* 要翻译的字段，目标字段翻译的字段+Str |
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* @return |
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*/ |
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String targetField() default ""; |
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/** |
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* 要翻译的字段值类型 |
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* @return |
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*/ |
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Class targetFieldValueClazz() default String.class; |
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} |
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@ -0,0 +1,17 @@
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package com.mh.user.annotation; |
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import java.lang.annotation.*; |
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/** |
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* @author LJF |
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* @version 1.0 |
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* @project mh_esi |
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* @description 需要翻译的字典值 |
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* @date 2024-11-08 14:29:39 |
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*/ |
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@Retention(RetentionPolicy.RUNTIME) |
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@Target(ElementType.METHOD) |
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@Documented |
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public @interface TranslationDict { |
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FieldParam[] value(); |
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} |
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@ -0,0 +1,136 @@
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package com.mh.user.aspect; |
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import com.alibaba.fastjson2.JSONObject; |
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import com.baomidou.mybatisplus.core.toolkit.StringUtils; |
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import com.mh.user.annotation.FieldParam; |
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import com.mh.user.annotation.TranslationDict; |
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import com.mh.user.model.SysDict; |
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import com.mh.user.service.SysDictService; |
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import lombok.extern.slf4j.Slf4j; |
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import org.aspectj.lang.ProceedingJoinPoint; |
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import org.aspectj.lang.annotation.Around; |
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import org.aspectj.lang.annotation.Aspect; |
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import org.aspectj.lang.reflect.MethodSignature; |
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import org.springframework.beans.factory.annotation.Autowired; |
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import org.springframework.stereotype.Component; |
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import java.lang.reflect.Method; |
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import java.util.List; |
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import java.util.Map; |
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import java.util.Optional; |
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import java.util.regex.Matcher; |
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import java.util.regex.Pattern; |
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/** |
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* @author LJF |
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* @version 1.0 |
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* @project mh_esi |
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* @description 数据字典转换 |
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* @date 2024-11-08 14:08:20 |
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*/ |
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@Aspect |
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@Component |
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@Slf4j |
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public class DictDataTranslateAsp { |
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@Autowired |
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private SysDictService sysDictService; |
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@Around("@annotation(com.mh.user.annotation.TranslationDict)") |
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public Object aroundMethodTranslate(ProceedingJoinPoint joinPoint) throws Throwable { |
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// 接收到请求时间
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Long startTime = System.currentTimeMillis(); |
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// 注意，如果调用joinPoint.proceed()方法，则修改的参数值不会生效，必须调用joinPoint.proceed(args)
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Object result = joinPoint.proceed(); |
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// 获取返回值类型
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Class<?> returnType = ((MethodSignature) joinPoint.getSignature()).getReturnType(); |
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// 取出要翻译的字典值
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String returnJsonResult = JSONObject.toJSONString(result); |
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// 开始解析
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Method method = ((MethodSignature) joinPoint.getSignature()).getMethod(); |
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// 获取注解上参数
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TranslationDict annotation = method.getAnnotation(TranslationDict.class); |
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FieldParam[] fieldParams = annotation.value(); |
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// 遍历
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for (FieldParam fieldParam : fieldParams) { |
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log.info("字典类型：{}，取值字段：{}", fieldParam.type(), fieldParam.targetField()); |
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Pattern dictPattern = getPattern(fieldParam); |
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Matcher matcher = dictPattern.matcher(returnJsonResult); |
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StringBuffer sb = new StringBuffer(); |
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// 转义字段
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this.translateDict(fieldParam, dictPattern, matcher, sb); |
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matcher.appendTail(sb); |
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returnJsonResult = sb.toString(); |
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} |
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result = JSONObject.parseObject(returnJsonResult, returnType); |
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// 如果这里不返回result，则目标对象实际返回值会被置为null
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// 处理完成时间
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Long endTime = System.currentTimeMillis(); |
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log.info("数据字典转换耗时：{}ms", endTime - startTime); |
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return result; |
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} |
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/** |
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* 字典值转义为中文 |
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* |
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* @param fieldParam |
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* @param fieldPattern |
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* @param fieldMatcher |
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* @param sb |
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*/ |
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private void translateDict(FieldParam fieldParam, Pattern fieldPattern, Matcher fieldMatcher, StringBuffer sb) { |
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//从缓存中一次性取值
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List<SysDict> dictNames = sysDictService.findByType(fieldParam.type()); |
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while (fieldMatcher.find()) { |
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//取出要翻译字段对应的值
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Matcher dictValueMatcher = fieldPattern.matcher(fieldMatcher.group()); |
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dictValueMatcher.find(); |
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String group = dictValueMatcher.group(); |
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//""sex":1", ""sex":"1"",""sex":null"
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//属性无值
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if (group.split(":").length <= 1) continue; |
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String dictName = ""; |
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//获取字典值
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String dictValue = group.split(":")[1].replace("\"", ""); |
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//属性值非为空 为空赋值空串
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if (StringUtils.isNotBlank(dictValue) && !dictValue.equalsIgnoreCase("null")) { |
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//多值
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if (dictValue.split(",").length > 1) { |
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for (String s : dictValue.split(",")) { |
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//fieldParam.dictType() + "_" + s 根据自己字典表设置的规则去查询
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String type = s; |
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Optional<SysDict> first = dictNames.stream().filter(d -> d.getValue().equals(type)).findFirst(); |
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if (!first.isPresent()) continue; |
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dictName += first.get().getLabel() + "/"; |
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} |
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} else { |
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String type = dictValue; |
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Optional<SysDict> first = dictNames.stream().filter(d -> d.getValue().equals(type)).findFirst(); |
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if (!first.isPresent()) continue; |
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dictName = first.get().getLabel(); |
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} |
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} |
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String s = "\"" + fieldParam.targetField() + "Str" + "\":\"" + dictName + "\"," + fieldMatcher.group(); |
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log.info("拼接后字符串:{}", s); |
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fieldMatcher.appendReplacement(sb, s); |
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} |
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} |
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private Pattern getPattern(FieldParam fieldParam) { |
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Pattern fieldPattern;//属性整型 字符型
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if (fieldParam.targetFieldValueClazz().equals(Integer.class)) { |
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fieldPattern = Pattern.compile("\"" + fieldParam.targetField() + "\":(\\d+)?"); |
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} else { |
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fieldPattern = Pattern.compile("\"" + fieldParam.targetField() + "\":\"([0-9a-zA-Z_,]+)?\""); |
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} |
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return fieldPattern; |
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} |
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} |
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@ -0,0 +1,62 @@
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package com.mh.user.config; |
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import com.github.benmanes.caffeine.cache.*; |
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import lombok.extern.slf4j.Slf4j; |
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import org.springframework.context.annotation.Bean; |
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import org.springframework.context.annotation.Configuration; |
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import java.util.concurrent.TimeUnit; |
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/** |
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* @author LJF |
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* @title ： |
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* @description 使用caffeine缓存技术 |
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* @updateTime 2020-12-15 |
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* @throws ： |
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*/ |
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@Slf4j |
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@Configuration |
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public class CaffeineCacheConfig { |
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// 软引用： 如果一个对象只具有软引用，则内存空间足够，垃圾回收器就不会回收它；如果内存空间不足了，就会回收这些对象的内存。
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// 弱引用： 弱引用的对象拥有更短暂的生命周期。在垃圾回收器线程扫描它所管辖的内存区域的过程中，一旦发现了只具有弱引用的对象，
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// 不管当前内存空间足够与否，都会回收它的内存
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@Bean(name = "caffeineCache") |
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public Cache<String, Object> caffeineCache() { |
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return Caffeine.newBuilder() |
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// 软引用
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.softValues() |
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// 弱引用
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// .weakValues()
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// 设置最后一次写入或访问后经过固定时间过期
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.expireAfterWrite(8*60*60, TimeUnit.SECONDS) |
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// 初始的缓存空间大小
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.initialCapacity(100) |
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// 缓存的最大条数
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.maximumSize(1000) |
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.build(); |
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} |
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//定义缓存,可直接使用
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@Bean |
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public LoadingCache expiryCache(){ |
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LoadingCache<String, Object> loadingCache = Caffeine.newBuilder() |
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.initialCapacity(100) |
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.maximumSize(1000) |
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//缓存写入/删除监控
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.writer(new CacheWriter<Object, Object>() { |
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@Override |
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public void write(Object key, Object value) { //此方法是同步阻塞的
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log.info("--缓存写入--:key={}, value={}", key, value); |
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} |
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@Override |
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public void delete(Object key, Object value, RemovalCause cause) { |
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log.info("--缓存删除--:key={}", key); } |
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}) |
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.expireAfterAccess(6, TimeUnit.HOURS) //过期时间
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.build((String key)->"刷新的数据"); //cacheload实现类,刷新时候调用
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// loadingCache.put("name","侯征");
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return loadingCache; |
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} |
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} |
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