由于表达式内的函数在前后端都可能执行，所以同一个表达式需要前后端同时定义 后端表达式自定义 package pro.shushi.pamirs.demo.core.fun; import org.apache.commons.lang3.StringUtils; import org.joda.time.DateTime; import pro.shushi.pamirs.meta.annotation.Fun; import pro.shushi.pamirs.meta.annotation.Function; import pro.shushi.pamirs.meta.common.constants.NamespaceConstants; import java.util.Date; import java.util.List; import static pro.shushi.pamirs.meta.enmu.FunctionCategoryEnum.TEXT; import static pro.shushi.pamirs.meta.enmu.FunctionCategoryEnum.TIME; import static pro.shushi.pamirs.meta.enmu.FunctionLanguageEnum.JAVA; import static pro.shushi.pamirs.meta.enmu.FunctionOpenEnum.LOCAL; import static pro.shushi.pamirs.meta.enmu.FunctionSceneEnum.EXPRESSION; /** * 自定义函数 */ @Fun(NamespaceConstants.expression) public class DemoCustomFunctions { @Function.Advanced( displayName = "逗号分隔字符串数组", language = JAVA, builtin = true, category = TEXT ) @Function.fun("MY_COMMA") @Function(name = "MY_COMMA", scene = {EXPRESSION}, openLevel = LOCAL, summary = "函数示例: MY_COMMA(list)\n函数说明: 将字符串数组转为逗号分隔的字符串" ) public String myComma(List<String> list) { return StringUtils.join(list, ","); } @Function.Advanced( displayName = "根据出生算年龄", language = JAVA, builtin = true, category = TIME ) @Function.fun("CALC_AGE") @Function(name = "CALC_AGE", scene = {EXPRESSION}, openLevel = LOCAL, summary = "函数示例: CALC_AGE(birthDate)\n函数说明: 根据出生算年龄" ) public Integer calcAge(Date birthDate) { if (birthDate == null) { return 0; } return new DateTime().getYear() – new DateTime(birthDate).getYear(); } } 前端表达式定义 定义后导入到main.ts里，导入@kunlun/dependencies的代码之后 import { Expression } from '@kunlun/dependencies'; import dayjs from 'dayjs'; Expression.getInstance().registerFunction('MY_COMMA', ['array'], (list: string[]) => { return (list || []) .map((value) => { return `'${value}'`; }) .join(','); }); Expression.getInstance().registerFunction('CALC_AGE', ['string'], (birthDate: string) => { if (birthDate == null) { return 0; } return Math.ceil(dayjs().year() – dayjs(birthDate,…
