{"id":66862,"date":"2025-05-03T11:29:06","date_gmt":"2025-05-03T03:29:06","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66862\/"},"modified":"2025-05-03T11:29:06","modified_gmt":"2025-05-03T03:29:06","slug":"java%e6%80%8e%e4%b9%88json%e8%a7%a3%e6%9e%90%e5%ad%97%e7%ac%a6%e4%b8%b2%e6%95%b0%e7%bb%84%e5%af%b9%e8%b1%a1-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66862\/","title":{"rendered":"java\u600e\u4e48json\u89e3\u6790\u5b57\u7b26\u4e32\u6570\u7ec4\u5bf9\u8c61"},"content":{"rendered":"<blockquote><p>\n  \u5728 java \u4e2d\u89e3\u6790 json \u5b57\u7b26\u4e32\u6570\u7ec4\u5bf9\u8c61\u53ef\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\uff1a\u5bfc\u5165 json \u5e93\u3002\u521b\u5efa gson \u5bf9\u8c61\u3002\u89e3\u6790 json \u5b57\u7b26\u4e32\u4e3a jsonarray \u5bf9\u8c61\u3002\u904d\u5386 jsonarray\uff0c\u83b7\u53d6\u5143\u7d20\u503c\uff08\u901a\u8fc7 getasxxx() \u65b9\u6cd5\uff09\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/17\/2024111712580810092.jpg\" class=\"aligncenter\" title=\"java\u600e\u4e48json\u89e3\u6790\u5b57\u7b26\u4e32\u6570\u7ec4\u5bf9\u8c61\u63d2\u56fe\" alt=\"java\u600e\u4e48json\u89e3\u6790\u5b57\u7b26\u4e32\u6570\u7ec4\u5bf9\u8c61\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u4f7f\u7528 Java \u89e3\u6790 JSON \u5bf9\u8c61<\/strong><\/p>\n<p>\u8981\u5728 Java \u4e2d\u89e3\u6790 JSON \u5b57\u7b26\u4e32\u6570\u7ec4\u5bf9\u8c61\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n<p><strong>1. \u5bfc\u5165 JSON \u5e93<\/strong><\/p>\n<pre>import com.google.gson.Gson;<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>2. \u521b\u5efa\u4e00\u4e2a Gson \u5bf9\u8c61<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<pre>Gson gson = new Gson();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>3. \u89e3\u6790 JSON \u5b57\u7b26\u4e32<\/strong><\/p>\n<pre>JsonArray jsonArray = gson.fromJson(jsonString, JsonArray.class);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>4. \u904d\u5386 JSON \u6570\u7ec4<\/strong><\/p>\n<pre>for (JsonElement element : jsonArray) {\n    \/\/ \u5bf9\u6bcf\u4e2a\u5143\u7d20\u8fdb\u884c\u5904\u7406\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>5. \u83b7\u53d6\u5143\u7d20\u503c<\/strong><\/p>\n<p>\u5bf9\u4e8e\u6bcf\u4e2a JSON \u5143\u7d20\uff0c\u53ef\u4ee5\u4f7f\u7528 getAsXXX() \u65b9\u6cd5\u83b7\u53d6\u5176\u503c\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>String value = element.getAsString();\nint number = element.getAsInt();\ndouble decimal = element.getAsDouble();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u793a\u4f8b\uff1a<\/strong><\/p>\n<p>\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a JSON \u5b57\u7b26\u4e32\uff1a<\/p>\n<pre>[\"John\", \"Mary\", \"Bob\"]<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u7801\u5c06\u5176\u89e3\u6790\u4e3a JSON \u6570\u7ec4\u5bf9\u8c61\uff1a<\/p>\n<pre>Gson gson = new Gson();\nJsonArray jsonArray = gson.fromJson(\"[\"John\", \"Mary\", \"Bob\"]\", JsonArray.class);\n\nfor (JsonElement element : jsonArray) {\n    System.out.println(element.getAsString());\n}<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8f93\u51fa\uff1a<\/p>\n<pre>John\nMary\nBob<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48json\u89e3\u6790\u5bf9\u8c61\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 java \u4e2d\u89e3\u6790 json \u5b57\u7b26\u4e32\u6570\u7ec4\u5bf9\u8c61\u53ef\u901a\u8fc7\u4ee5\u4e0b\u6b65\u9aa4\uff1a\u5bfc\u5165 json \u5e93\u3002\u521b\u5efa gson \u5bf9\u8c61\u3002\u89e3\u6790 json \u5b57\u7b26\u4e32\u4e3a jsonarray \u5bf9\u8c61\u3002\u904d\u5386 jsonarray\uff0c\u83b7\u53d6\u5143\u7d20\u503c\uff08\u901a\u8fc7 getasxxx() \u65b9\u6cd5\uff09\u3002 \u5982\u4f55\u4f7f\u7528 Java \u89e3\u6790 JSON \u5bf9\u8c61 \u8981\u5728 Java \u4e2d\u89e3\u6790 JSON \u5b57\u7b26\u4e32\u6570\u7ec4\u5bf9\u8c61\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a 1. \u5bfc\u5165 JSON \u5e93 import com.google.gson.Gson; \u767b\u5f55\u540e\u590d\u5236 2. \u521b\u5efa\u4e00\u4e2a Gson \u5bf9\u8c61 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b Gson gson = new Gson(); \u767b\u5f55\u540e\u590d\u5236 3. \u89e3\u6790 JSON \u5b57\u7b26\u4e32 JsonArray jsonArray = gson.fromJson(jsonString, JsonArray.class); \u767b\u5f55\u540e\u590d\u5236 4. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-66862","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66862","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=66862"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66862\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66862"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66862"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66862"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}