{"id":78187,"date":"2026-02-26T14:34:12","date_gmt":"2026-02-26T06:34:12","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/78187.html"},"modified":"2026-02-26T14:34:12","modified_gmt":"2026-02-26T06:34:12","slug":"%e6%90%ad%e5%bb%ba%e6%9f%a5%e5%88%b8%e5%85%ac%e4%bc%97%e5%8f%b7%e7%9a%84%e5%be%ae%e6%9c%8d%e5%8a%a1%e6%8b%86%e5%88%86%e5%8e%9f%e5%88%99%ef%bc%9ajava%e9%a2%86%e5%9f%9f%e9%a9%b1%e5%8a%a8%e8%ae%be","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/78187.html","title":{"rendered":"\u642d\u5efa\u67e5\u5238\u516c\u4f17\u53f7\u7684\u5fae\u670d\u52a1\u62c6\u5206\u539f\u5219\uff1aJava\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1\uff08DDD\uff09\u5212\u5206\u67e5\u5238\/\u7528\u6237\/\u5238\u7801\u9650\u754c\u4e0a\u4e0b\u6587\u7684\u5b9e\u8df5"},"content":{"rendered":"<h2>\u642d\u5efa\u67e5\u5238\u516c\u4f17\u53f7\u7684\u5fae\u670d\u52a1\u62c6\u5206\u539f\u5219&#xff1a;Java\u9886\u57df\u9a71\u52a8\u8bbe\u8ba1&#xff08;DDD&#xff09;\u5212\u5206\u67e5\u5238\/\u7528\u6237\/\u5238\u7801\u9650\u754c\u4e0a\u4e0b\u6587\u7684\u5b9e\u8df5<\/h2>\n<p>\u5927\u5bb6\u597d&#xff0c;\u6211\u662f 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\u83b7\u53d6\u5546\u54c1\u4f18\u60e0\u4fe1\u606f&#xff0c;\u4e0d\u5b58\u50a8\u5238\u7801\u3002<\/li>\n<li>\u5238\u7801\u4e0a\u4e0b\u6587&#xff1a;\u7ba1\u7406\u5b9e\u9645\u53ef\u7528\u7684\u9690\u85cf\u5238\u3001\u9ad8\u4f63\u5238\u3001\u9650\u65f6\u5238\u7b49\u5b9e\u4f53&#xff0c;\u5305\u542b\u5e93\u5b58\u3001\u6709\u6548\u671f\u3001\u9886\u53d6\u72b6\u6001\u7b49\u3002<\/li>\n<\/ul>\n<p>\u5404\u4e0a\u4e0b\u6587\u72ec\u7acb\u6570\u636e\u5e93\u3001\u72ec\u7acb\u90e8\u7f72\u5355\u5143&#xff0c;\u901a\u8fc7 REST \u6216\u6d88\u606f\u961f\u5217\u901a\u4fe1\u3002<\/p>\n<h3>\u7528\u6237\u4e0a\u4e0b\u6587\u6838\u5fc3\u6a21\u578b<\/h3>\n<p><span class=\"token comment\">\/\/ juwatech.cn.user.domain.model.User.java<\/span><br \/>\n<span class=\"token keyword\">package<\/span> <span class=\"token namespace\">juwatech<span class=\"token punctuation\">.<\/span>cn<span class=\"token punctuation\">.<\/span>user<span class=\"token punctuation\">.<\/span>domain<span class=\"token punctuation\">.<\/span>model<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">User<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">String<\/span> userId<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">String<\/span> openId<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">UserTier<\/span> tier<span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ \u666e\u901a\/VIP\/\u4f01\u4e1a<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">int<\/span> points<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">boolean<\/span> <span class=\"token function\">isEligibleForHighCommission<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> tier <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token class-name\">UserTier<\/span><span class=\"token punctuation\">.<\/span>VIP <span class=\"token operator\">||<\/span> tier <span class=\"token operator\">&#061;&#061;<\/span> <span class=\"token class-name\">UserTier<\/span><span class=\"token punctuation\">.<\/span>ENTERPRISE<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ getters\/setters<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ juwatech.cn.user.application.UserService.java<\/span><br \/>\n<span class=\"token keyword\">package<\/span> <span class=\"token namespace\">juwatech<span class=\"token punctuation\">.<\/span>cn<span class=\"token punctuation\">.<\/span>user<span class=\"token punctuation\">.<\/span>application<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token namespace\">juwatech<span class=\"token punctuation\">.<\/span>cn<span class=\"token punctuation\">.<\/span>user<span class=\"token punctuation\">.<\/span>domain<span class=\"token punctuation\">.<\/span>model<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">User<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">interface<\/span> <span class=\"token class-name\">UserService<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">User<\/span> <span class=\"token function\">getUserByOpenId<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> openId<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">void<\/span> <span class=\"token function\">awardPoints<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> userId<span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">int<\/span> points<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>\u67e5\u5238\u4e0a\u4e0b\u6587\u805a\u5408\u6839\u4e0e\u670d\u52a1<\/h3>\n<p>\u67e5\u5238\u4e0a\u4e0b\u6587\u4e0d\u6301\u6709\u5238\u7801&#xff0c;\u4ec5\u4f5c\u4e3a\u67e5\u8be2\u534f\u8c03\u5668&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/ juwatech.cn.search.domain.service.CouponSearchService.java<\/span><br \/>\n<span class=\"token keyword\">package<\/span> <span class=\"token namespace\">juwatech<span class=\"token punctuation\">.<\/span>cn<span class=\"token punctuation\">.<\/span>search<span class=\"token punctuation\">.<\/span>domain<span class=\"token punctuation\">.<\/span>service<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token namespace\">juwatech<span class=\"token punctuation\">.<\/span>cn<span class=\"token punctuation\">.<\/span>search<span class=\"token punctuation\">.<\/span>domain<span class=\"token punctuation\">.<\/span>model<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">SearchRequest<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">juwatech<span class=\"token punctuation\">.<\/span>cn<span class=\"token punctuation\">.<\/span>search<span class=\"token punctuation\">.<\/span>domain<span class=\"token punctuation\">.<\/span>model<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">CouponResult<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">interface<\/span> <span class=\"token class-name\">CouponSearchService<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token class-name\">CouponResult<\/span> <span class=\"token function\">search<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">SearchRequest<\/span> request<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ juwatech.cn.search.application.CouponSearchAppService.java<\/span><br \/>\n<span class=\"token keyword\">package<\/span> <span class=\"token namespace\">juwatech<span class=\"token punctuation\">.<\/span>cn<span class=\"token punctuation\">.<\/span>search<span class=\"token punctuation\">.<\/span>application<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token namespace\">juwatech<span class=\"token punctuation\">.<\/span>cn<span class=\"token punctuation\">.<\/span>user<span class=\"token punctuation\">.<\/span>client<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">UserClient<\/span><span class=\"token punctuation\">;<\/span> <span class=\"token comment\">\/\/ Feign Client<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">juwatech<span class=\"token punctuation\">.<\/span>cn<span class=\"token punctuation\">.<\/span>search<span class=\"token punctuation\">.<\/span>domain<span class=\"token punctuation\">.<\/span>service<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">CouponSearchService<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>stereotype<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Service<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token annotation punctuation\">&#064;Service<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">CouponSearchAppService<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">UserClient<\/span> userClient<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">CouponSearchService<\/span> searchService<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">CouponSearchAppService<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">UserClient<\/span> userClient<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">CouponSearchService<\/span> searchService<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>userClient <span class=\"token operator\">&#061;<\/span> userClient<span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>searchService <span class=\"token operator\">&#061;<\/span> searchService<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">Object<\/span> <span class=\"token function\">handleSearch<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> openId<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">String<\/span> itemId<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">var<\/span> user <span class=\"token operator\">&#061;<\/span> userClient<span class=\"token punctuation\">.<\/span><span class=\"token function\">getUserByOpenId<\/span><span class=\"token punctuation\">(<\/span>openId<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">var<\/span> request <span class=\"token operator\">&#061;<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\"><span class=\"token namespace\">juwatech<span class=\"token punctuation\">.<\/span>cn<span class=\"token punctuation\">.<\/span>search<span class=\"token punctuation\">.<\/span>domain<span class=\"token punctuation\">.<\/span>model<span class=\"token punctuation\">.<\/span><\/span>SearchRequest<\/span><span class=\"token punctuation\">(<\/span>itemId<span class=\"token punctuation\">,<\/span> user<span class=\"token punctuation\">.<\/span><span class=\"token function\">getUserId<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> searchService<span class=\"token punctuation\">.<\/span><span class=\"token function\">search<\/span><span class=\"token punctuation\">(<\/span>request<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>\u5238\u7801\u4e0a\u4e0b\u6587\u5b9e\u4f53\u4e0e\u5e93\u5b58\u63a7\u5236<\/h3>\n<p>\u5238\u7801\u662f\u72ec\u7acb\u8d44\u6e90&#xff0c;\u652f\u6301\u9886\u53d6\u4e0e\u6838\u9500&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/ juwatech.cn.voucher.domain.model.Voucher.java<\/span><br \/>\n<span class=\"token keyword\">package<\/span> <span class=\"token namespace\">juwatech<span class=\"token punctuation\">.<\/span>cn<span class=\"token punctuation\">.<\/span>voucher<span class=\"token punctuation\">.<\/span>domain<span class=\"token punctuation\">.<\/span>model<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token namespace\">java<span class=\"token punctuation\">.<\/span>time<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">LocalDateTime<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">Voucher<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">String<\/span> voucherId<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">String<\/span> itemId<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">String<\/span> code<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">LocalDateTime<\/span> expireAt<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">boolean<\/span> claimed<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">String<\/span> claimedBy<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">boolean<\/span> <span class=\"token function\">canBeClaimed<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> <span class=\"token operator\">!<\/span>claimed <span class=\"token operator\">&amp;&amp;<\/span> <span class=\"token class-name\">LocalDateTime<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">now<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">isBefore<\/span><span class=\"token punctuation\">(<\/span>expireAt<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">claim<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> userId<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">!<\/span><span class=\"token function\">canBeClaimed<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            <span class=\"token keyword\">throw<\/span> <span class=\"token keyword\">new<\/span> <span class=\"token class-name\">IllegalStateException<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">&#034;Voucher not available&#034;<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>claimed <span class=\"token operator\">&#061;<\/span> <span class=\"token boolean\">true<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>claimedBy <span class=\"token operator\">&#061;<\/span> userId<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ juwatech.cn.voucher.application.VoucherService.java<\/span><br \/>\n<span class=\"token keyword\">package<\/span> <span class=\"token namespace\">juwatech<span class=\"token punctuation\">.<\/span>cn<span class=\"token punctuation\">.<\/span>voucher<span class=\"token punctuation\">.<\/span>application<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token namespace\">juwatech<span class=\"token punctuation\">.<\/span>cn<span class=\"token punctuation\">.<\/span>voucher<span class=\"token punctuation\">.<\/span>domain<span class=\"token punctuation\">.<\/span>model<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Voucher<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">juwatech<span class=\"token punctuation\">.<\/span>cn<span class=\"token punctuation\">.<\/span>voucher<span class=\"token punctuation\">.<\/span>domain<span class=\"token punctuation\">.<\/span>repository<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">VoucherRepository<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>stereotype<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Service<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>transaction<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Transactional<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token annotation punctuation\">&#064;Service<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">VoucherService<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\">VoucherRepository<\/span> voucherRepository<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">VoucherService<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">VoucherRepository<\/span> voucherRepository<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>voucherRepository <span class=\"token operator\">&#061;<\/span> voucherRepository<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;Transactional<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">String<\/span> <span class=\"token function\">claimVoucher<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span> voucherId<span class=\"token punctuation\">,<\/span> <span class=\"token class-name\">String<\/span> userId<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token class-name\">Voucher<\/span> voucher <span class=\"token operator\">&#061;<\/span> voucherRepository<span class=\"token punctuation\">.<\/span><span class=\"token function\">findById<\/span><span class=\"token punctuation\">(<\/span>voucherId<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        voucher<span class=\"token punctuation\">.<\/span><span class=\"token function\">claim<\/span><span class=\"token punctuation\">(<\/span>userId<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        voucherRepository<span class=\"token punctuation\">.<\/span><span class=\"token function\">save<\/span><span class=\"token punctuation\">(<\/span>voucher<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token keyword\">return<\/span> voucher<span class=\"token punctuation\">.<\/span><span class=\"token function\">getCode<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>\u8de8\u4e0a\u4e0b\u6587\u901a\u4fe1&#xff1a;\u4e8b\u4ef6\u9a71\u52a8\u89e3\u8026<\/h3>\n<p>\u5f53\u7528\u6237\u5b8c\u6210\u67e5\u5238&#xff0c;\u82e5\u5b58\u5728\u4e13\u5c5e\u5238\u7801&#xff0c;\u7531\u67e5\u5238\u4e0a\u4e0b\u6587\u53d1\u5e03\u4e8b\u4ef6&#xff0c;\u5238\u7801\u4e0a\u4e0b\u6587\u76d1\u542c\u5e76\u9884\u52a0\u8f7d&#xff1a;<\/p>\n<p><span class=\"token comment\">\/\/ juwatech.cn.search.infrastructure.event.CouponSearchedEvent.java<\/span><br \/>\n<span class=\"token keyword\">package<\/span> <span class=\"token namespace\">juwatech<span class=\"token punctuation\">.<\/span>cn<span class=\"token punctuation\">.<\/span>search<span class=\"token punctuation\">.<\/span>infrastructure<span class=\"token punctuation\">.<\/span>event<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">CouponSearchedEvent<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">String<\/span> userId<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token class-name\">String<\/span> itemId<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">boolean<\/span> hasExclusiveVoucher<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token comment\">\/\/ constructor\/getters<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<p><span class=\"token comment\">\/\/ juwatech.cn.voucher.infrastructure.listener.VoucherPreloadListener.java<\/span><br \/>\n<span class=\"token keyword\">package<\/span> <span class=\"token namespace\">juwatech<span class=\"token punctuation\">.<\/span>cn<span class=\"token punctuation\">.<\/span>voucher<span class=\"token punctuation\">.<\/span>infrastructure<span class=\"token punctuation\">.<\/span>listener<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token keyword\">import<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>kafka<span class=\"token punctuation\">.<\/span>annotation<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">KafkaListener<\/span><span class=\"token punctuation\">;<\/span><br \/>\n<span class=\"token keyword\">import<\/span> <span class=\"token namespace\">org<span class=\"token punctuation\">.<\/span>springframework<span class=\"token punctuation\">.<\/span>stereotype<span class=\"token punctuation\">.<\/span><\/span><span class=\"token class-name\">Component<\/span><span class=\"token punctuation\">;<\/span><\/p>\n<p><span class=\"token annotation punctuation\">&#064;Component<\/span><br \/>\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">VoucherPreloadListener<\/span> <span class=\"token punctuation\">{<\/span><\/p>\n<p>    <span class=\"token keyword\">private<\/span> <span class=\"token keyword\">final<\/span> <span class=\"token class-name\"><span class=\"token namespace\">juwatech<span class=\"token punctuation\">.<\/span>cn<span class=\"token punctuation\">.<\/span>voucher<span class=\"token punctuation\">.<\/span>application<span class=\"token punctuation\">.<\/span><\/span>VoucherPreloader<\/span> preloader<span class=\"token punctuation\">;<\/span><\/p>\n<p>    <span class=\"token keyword\">public<\/span> <span class=\"token class-name\">VoucherPreloadListener<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token namespace\">juwatech<span class=\"token punctuation\">.<\/span>cn<span class=\"token punctuation\">.<\/span>voucher<span class=\"token punctuation\">.<\/span>application<span class=\"token punctuation\">.<\/span><\/span>VoucherPreloader<\/span> preloader<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">this<\/span><span class=\"token punctuation\">.<\/span>preloader <span class=\"token operator\">&#061;<\/span> preloader<span class=\"token punctuation\">;<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><\/p>\n<p>    <span class=\"token annotation punctuation\">&#064;KafkaListener<\/span><span class=\"token punctuation\">(<\/span>topics <span class=\"token operator\">&#061;<\/span> <span class=\"token string\">&#034;coupon-searched&#034;<\/span><span class=\"token punctuation\">)<\/span><br \/>\n    <span class=\"token keyword\">public<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">onCouponSearched<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\"><span class=\"token namespace\">juwatech<span class=\"token punctuation\">.<\/span>cn<span class=\"token punctuation\">.<\/span>search<span class=\"token punctuation\">.<\/span>infrastructure<span class=\"token punctuation\">.<\/span>event<span class=\"token punctuation\">.<\/span><\/span>CouponSearchedEvent<\/span> event<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n        <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>event<span class=\"token punctuation\">.<\/span><span class=\"token function\">hasExclusiveVoucher<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span><br \/>\n            preloader<span class=\"token punctuation\">.<\/span><span class=\"token function\">preloadForUser<\/span><span class=\"token punctuation\">(<\/span>event<span class=\"token punctuation\">.<\/span><span class=\"token function\">getUserId<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span> event<span class=\"token punctuation\">.<\/span><span class=\"token function\">getItemId<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><br \/>\n        <span class=\"token punctuation\">}<\/span><br \/>\n    <span class=\"token punctuation\">}<\/span><br \/>\n<span class=\"token punctuation\">}<\/span><\/p>\n<h3>API \u7f51\u5173\u8def\u7531\u4e0e\u4e0a\u4e0b\u6587\u9694\u79bb<\/h3>\n<p>Spring Cloud Gateway \u6309\u8def\u5f84\u8def\u7531&#xff1a;<\/p>\n<p><span class=\"token comment\"># gateway routes<\/span><br \/>\n<span class=\"token key atrule\">spring<\/span><span class=\"token punctuation\">:<\/span><br \/>\n  <span class=\"token key atrule\">cloud<\/span><span class=\"token punctuation\">:<\/span><br \/>\n    <span class=\"token key atrule\">gateway<\/span><span class=\"token punctuation\">:<\/span><br \/>\n      <span class=\"token key atrule\">routes<\/span><span class=\"token punctuation\">:<\/span><br \/>\n        <span class=\"token punctuation\">&#8211;<\/span> <span class=\"token key atrule\">id<\/span><span class=\"token punctuation\">:<\/span> user<span class=\"token punctuation\">&#8211;<\/span>service<br \/>\n          <span class=\"token key atrule\">uri<\/span><span class=\"token punctuation\">:<\/span> lb<span class=\"token punctuation\">:<\/span>\/\/user<span class=\"token punctuation\">&#8211;<\/span>service<br \/>\n          <span class=\"token key atrule\">predicates<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            <span class=\"token punctuation\">&#8211;<\/span> Path&#061;\/api\/user\/<span class=\"token important\">**<\/span><br \/>\n        <span class=\"token punctuation\">&#8211;<\/span> <span class=\"token key atrule\">id<\/span><span class=\"token punctuation\">:<\/span> search<span class=\"token punctuation\">&#8211;<\/span>service<br \/>\n          <span class=\"token key atrule\">uri<\/span><span class=\"token punctuation\">:<\/span> lb<span class=\"token punctuation\">:<\/span>\/\/search<span class=\"token punctuation\">&#8211;<\/span>service<br \/>\n          <span class=\"token key atrule\">predicates<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            <span class=\"token punctuation\">&#8211;<\/span> Path&#061;\/api\/search\/<span class=\"token important\">**<\/span><br \/>\n        <span class=\"token punctuation\">&#8211;<\/span> <span class=\"token key atrule\">id<\/span><span class=\"token punctuation\">:<\/span> voucher<span class=\"token punctuation\">&#8211;<\/span>service<br \/>\n          <span class=\"token key atrule\">uri<\/span><span class=\"token punctuation\">:<\/span> lb<span class=\"token punctuation\">:<\/span>\/\/voucher<span class=\"token punctuation\">&#8211;<\/span>service<br \/>\n          <span class=\"token key atrule\">predicates<\/span><span class=\"token punctuation\">:<\/span><br \/>\n            <span class=\"token punctuation\">&#8211;<\/span> Path&#061;\/api\/voucher\/<span class=\"token important\">**<\/span><\/p>\n<p>\u901a\u8fc7 DDD \u7684\u9650\u754c\u4e0a\u4e0b\u6587\u5212\u5206&#xff0c;\u67e5\u5238\u516c\u4f17\u53f7\u7cfb\u7edf\u5b9e\u73b0\u4e86\u9ad8\u5185\u805a\u3001\u4f4e\u8026\u5408\u7684\u5fae\u670d\u52a1\u67b6\u6784&#xff0c;\u5404\u56e2\u961f\u53ef\u72ec\u7acb\u5f00\u53d1\u3001\u6d4b\u8bd5\u4e0e\u90e8\u7f72&#xff0c;\u663e\u8457\u63d0\u5347\u4ea4\u4ed8\u6548\u7387\u3002<\/p>\n<p>\u672c\u6587\u8457\u4f5c\u6743\u5f52 \u5fae\u8d5a\u6dd8\u5ba2\u7cfb\u7edf3.0 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