{"id":203582,"date":"2025-05-22T09:47:14","date_gmt":"2025-05-22T01:47:14","guid":{"rendered":"https:\/\/server.hk\/cnblog\/203582\/"},"modified":"2025-05-22T09:47:14","modified_gmt":"2025-05-22T01:47:14","slug":"fastjson-%e8%bd%ac%e6%8d%a2-bigdecimal-%e6%97%b6%e7%b2%be%e5%ba%a6%e4%b8%a2%e5%a4%b1%e9%97%ae%e9%a2%98%ef%bc%9a%e5%a6%82%e4%bd%95%e9%81%bf%e5%85%8d%e6%95%b0%e6%8d%ae%e5%a4%b1%e7%9c%9f%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/203582\/","title":{"rendered":"Fastjson \u8f6c\u6362 BigDecimal \u65f6\u7cbe\u5ea6\u4e22\u5931\u95ee\u9898\uff1a\u5982\u4f55\u907f\u514d\u6570\u636e\u5931\u771f\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Fastjson \u8f6c\u6362 BigDecimal \u65f6\u7cbe\u5ea6\u4e22\u5931\u95ee\u9898\uff1a\u5982\u4f55\u907f\u514d\u6570\u636e\u5931\u771f\uff1f<\/h1>\n<p>\u5927\u5bb6\u597d\uff0c\u4eca\u5929\u672c\u4eba\u7ed9\u5927\u5bb6\u5e26\u6765\u6587\u7ae0<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u300aFastjson \u8f6c\u6362 BigDecimal \u65f6\u7cbe\u5ea6\u4e22\u5931\u95ee\u9898\uff1a\u5982\u4f55\u907f\u514d\u6570\u636e\u5931\u771f\uff1f\u300b<\/span>\uff0c\u6587\u4e2d\u5185\u5bb9\u4e3b\u8981\u6d89\u53ca\u5230<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\"><\/span><\/span>\uff0c\u5982\u679c\u4f60\u5bf9<span style=\"color: #FF6600;, Helvetica, Arial, sans-serif;font-size: 14px;background-color: #FFFFFF\">\u6587\u7ae0<\/span>\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u90a3\u5c31\u8bf7\u5404\u4f4d\u670b\u53cb\u7ee7\u7eed\u770b\u4e0b\u53bb\u5427~\u5e0c\u671b\u80fd\u771f\u6b63\u5e2e\u5230\u4f60\u4eec\uff0c\u8c22\u8c22\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241112\/17313955696732fff1a6568.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>fastjson\u8f6c\u6362bigdecimal\u65f6\u7cbe\u5ea6\u4e22\u5931\u95ee\u9898<\/strong><\/p>\n<p>\u5728\u4f7f\u7528fastjson\u8f6c\u6362bigdecimal\u7c7b\u578b\u7684\u6570\u636e\u65f6\uff0c\u53ef\u80fd\u4f1a\u51fa\u73b0\u7cbe\u5ea6\u4e22\u5931\u7684\u95ee\u9898\uff0c\u4f8b\u5982\u5c0612.0700\u8f6c\u6362\u4e3ajson\u5b57\u7b26\u4e32\u540e\uff0c\u518d\u8f6c\u6362\u56de\u6765\u65f6\u53d8\u4e3a12.7\u3002<\/p>\n<p><strong>\u539f\u56e0\u5206\u6790<\/strong><\/p>\n<p>fastjson\u9ed8\u8ba4\u4f7f\u7528\u53cc\u7cbe\u5ea6\u6d6e\u70b9\u6570\u6765\u8868\u793abigdecimal\u7c7b\u578b\u3002\u53cc\u7cbe\u5ea6\u6d6e\u70b9\u6570\u5b58\u5728\u7cbe\u5ea6\u9650\u5236\uff0c\u65e0\u6cd5\u7cbe\u786e\u8868\u793a\u67d0\u4e9b\u5c0f\u6570\u3002\u56e0\u6b64\uff0c\u5728\u5c06bigdecimal\u8f6c\u6362\u4e3a\u53cc\u7cbe\u5ea6\u6d6e\u70b9\u6570\u65f6\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u7cbe\u5ea6\u4e22\u5931\u3002<\/p>\n<p><strong>\u89e3\u51b3\u65b9\u6cd5<\/strong><\/p>\n<p>\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u7684\u65b9\u6cd5\u662f\u4f7f\u7528fastjson\u7684\u7279\u5b9a\u7279\u6027\u3002fastjson\u4ece1.2.26\u7248\u672c\u5f00\u59cb\uff0c\u63d0\u4f9b\u4e86\u4ee5\u4e0b\u7279\u6027\uff1a<\/p>\n<ul>\n<li>serializerfeature.writebigdecimalasplain\uff1a\u5c06bigdecimal\u8868\u793a\u4e3a\u5b57\u7b26\u4e32\uff0c\u800c\u4e0d\u662f\u53cc\u7cbe\u5ea6\u6d6e\u70b9\u6570\u3002<\/li>\n<li>deserializerfeature.usebigdecimal\uff1a\u5728\u53cd\u5e8f\u5217\u5316\u65f6\u5c06\u5b57\u7b26\u4e32\u89e3\u6790\u4e3abigdecimal\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\u4ee3\u7801<\/strong><\/p>\n<p>\u4ee5\u4e0b\u793a\u4f8b\u4ee3\u7801\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528\u8fd9\u4e9b\u7279\u6027\u89e3\u51b3\u7cbe\u5ea6\u4e22\u5931\u95ee\u9898\uff1a<\/p>\n<pre>\/\/ \u4f7f\u7528SerializerFeature.WriteBigDecimalAsPlain\u7279\u6027\u8f6c\u6362BigDecimal\u4e3aJSON\nString json = JSON.toJSONString(new BigDecimal(\"12.0700\"), SerializerFeature.WriteBigDecimalAsPlain);\n\n\/\/ \u4f7f\u7528DeserializerFeature.UseBigDecimal\u7279\u6027\u5c06JSON\u89e3\u6790\u4e3aBigDecimal\nBigDecimal bigDecimal = JSON.parseObject(json, BigDecimal.class, DeserializerFeature.UseBigDecimal);<\/pre>\n<p>\u901a\u8fc7\u4f7f\u7528\u8fd9\u4e9b\u7279\u6027\uff0c\u53ef\u4ee5\u4fdd\u8bc1bigdecimal\u5728json\u8f6c\u6362\u8fc7\u7a0b\u4e2d\u4e0d\u4f1a\u53d1\u751f\u7cbe\u5ea6\u4e22\u5931\u3002<\/p>\n<p>\u4eca\u5929\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u5e0c\u671b\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff1b\u5173\u4e8e\u6587\u7ae0\u7684\u6280\u672f\u77e5\u8bc6\u6211\u4eec\u4f1a\u4e00\u70b9\u70b9\u6df1\u5165\u4ecb\u7ecd\uff0c\u6b22\u8fce\u5927\u5bb6\u5173\u6ce8\u516c\u4f17\u53f7\uff0c\u4e00\u8d77\u5b66\u4e60\u7f16\u7a0b~<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Fastjson \u8f6c\u6362 BigD&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-203582","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203582","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=203582"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/203582\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=203582"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=203582"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=203582"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}