{"id":39257,"date":"2024-11-26T12:03:39","date_gmt":"2024-11-26T04:03:39","guid":{"rendered":"https:\/\/fwq.ai\/blog\/39257\/"},"modified":"2024-11-26T12:03:39","modified_gmt":"2024-11-26T04:03:39","slug":"java%e6%80%8e%e4%b9%88%e8%8e%b7%e5%8f%96json%e6%95%b0%e7%bb%84%e9%87%8c%e7%9a%84%e5%80%bc","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/39257\/","title":{"rendered":"java\u600e\u4e48\u83b7\u53d6json\u6570\u7ec4\u91cc\u7684\u503c"},"content":{"rendered":"

\n java\u4e2d\u83b7\u53d6json\u6570\u7ec4\u4e2d\u7684\u503c\uff1a\u521b\u5efajson\u89e3\u6790\u5668\u89e3\u6790json\u5b57\u7b26\u4e32\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u503c\uff1a\u6839\u636e\u7d22\u5f15\u83b7\u53d6\u5143\u7d20 get(int index)\u83b7\u53d6json\u5bf9\u8c61 getjsonobject(int index)\u83b7\u53d6json\u6570\u7ec4 getjsonarray(int index)\u83b7\u53d6\u5b57\u7b26\u4e32\u503c optstring(int index)\u83b7\u53d6\u6570\u5b57\u503c optnumber(int index)\n<\/p><\/blockquote>\n

\"java\u600e\u4e48\u83b7\u53d6json\u6570\u7ec4\u91cc\u7684\u503c\u63d2\u56fe\"<\/p>\n

Java\u4e2d\u83b7\u53d6JSON\u6570\u7ec4\u4e2d\u7684\u503c<\/strong><\/p>\n

\u7b2c\u4e00\u6b65\uff1a\u521b\u5efaJSON\u89e3\u6790\u5668<\/strong><\/p>\n

import org.json.JSONArray;<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u7b2c\u4e8c\u6b65\uff1a\u89e3\u6790JSON\u5b57\u7b26\u4e32<\/strong><\/p>\n
JSONArray jsonArray = new JSONArray(jsonString);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u7b2c\u4e09\u6b65\uff1a\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u503c<\/strong><\/p>\n
\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n
\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u503c\uff1a<\/p>\n
    \n
  •  get(int index)\uff1a<\/strong>\u6839\u636e\u7d22\u5f15\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u5143\u7d20<\/li>\n
  •  getJSONObject(int index)\uff1a<\/strong>\u5982\u679c\u6570\u7ec4\u5143\u7d20\u662fJSON\u5bf9\u8c61\uff0c\u5219\u8fd4\u56de\u8be5\u5bf9\u8c61<\/li>\n
  •  getJSONArray(int index)\uff1a<\/strong>\u5982\u679c\u6570\u7ec4\u5143\u7d20\u662fJSON\u6570\u7ec4\uff0c\u5219\u8fd4\u56de\u8be5\u6570\u7ec4<\/li>\n
  •  optString(int index)\uff1a<\/strong>\u5982\u679c\u6570\u7ec4\u5143\u7d20\u662f\u5b57\u7b26\u4e32\uff0c\u5219\u8fd4\u56de\u8be5\u5b57\u7b26\u4e32\uff0c\u5426\u5219\u8fd4\u56de\u4e00\u4e2a\u7a7a\u5b57\u7b26\u4e32<\/li>\n
  •  optNumber(int index)\uff1a<\/strong>\u5982\u679c\u6570\u7ec4\u5143\u7d20\u662f\u6570\u5b57\uff0c\u5219\u8fd4\u56de\u8be5\u6570\u5b57\uff0c\u5426\u5219\u8fd4\u56de 0<\/li>\n<\/ul>\n
    \u793a\u4f8b\u4ee3\u7801\uff1a<\/strong><\/p>\n
    for (int i = 0; i < jsonArray.length(); i++) {\n    if (jsonArray.get(i) instanceof JSONObject) {\n        JSONObject jsonObject = jsonArray.getJSONObject(i);\n        \/\/ \u5904\u7406 JSON \u5bf9\u8c61\n    } else if (jsonArray.get(i) instanceof JSONArray) {\n        JSONArray nestedArray = jsonArray.getJSONArray(i);\n        \/\/ \u5904\u7406 JSON \u6570\u7ec4\n    } else if (jsonArray.get(i) instanceof String) {\n        String value = jsonArray.optString(i);\n        \/\/ \u5904\u7406\u5b57\u7b26\u4e32\u503c\n    } else if (jsonArray.get(i) instanceof Number) {\n        double value = jsonArray.optNumber(i);\n        \/\/ \u5904\u7406\u6570\u5b57\u503c\n    }\n}<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u4ee5\u4e0a\u5c31\u662fjava\u600e\u4e48\u83b7\u53d6\u91cc\u7684\u503c\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    java\u4e2d\u83b7\u53d6json\u6570\u7ec4\u4e2d\u7684\u503c\uff1a\u521b\u5efajson\u89e3\u6790\u5668\u89e3\u6790json\u5b57\u7b26\u4e32\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u503c\uff1a\u6839\u636e\u7d22\u5f15\u83b7\u53d6\u5143\u7d20 get(int index)\u83b7\u53d6json\u5bf9\u8c61 getjsonobject(int index)\u83b7\u53d6json\u6570\u7ec4 getjsonarray(int index)\u83b7\u53d6\u5b57\u7b26\u4e32\u503c optstring(int index)\u83b7\u53d6\u6570\u5b57\u503c optnumber(int index) Java\u4e2d\u83b7\u53d6JSON\u6570\u7ec4\u4e2d\u7684\u503c \u7b2c\u4e00\u6b65\uff1a\u521b\u5efaJSON\u89e3\u6790\u5668 import org.json.JSONArray; \u767b\u5f55\u540e\u590d\u5236 \u7b2c\u4e8c\u6b65\uff1a\u89e3\u6790JSON\u5b57\u7b26\u4e32 JSONArray jsonArray = new JSONArray(jsonString); \u767b\u5f55\u540e\u590d\u5236 \u7b2c\u4e09\u6b65\uff1a\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u503c \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u65b9\u6cd5\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u503c\uff1a get(int index)\uff1a\u6839\u636e\u7d22\u5f15\u83b7\u53d6\u6570\u7ec4\u4e2d\u7684\u5143\u7d20 getJSONObject(int index)\uff1a\u5982\u679c\u6570\u7ec4\u5143\u7d20\u662fJSON\u5bf9\u8c61\uff0c\u5219\u8fd4\u56de\u8be5\u5bf9\u8c61 getJSONArray(int index)\uff1a\u5982\u679c\u6570\u7ec4\u5143\u7d20\u662fJSON\u6570\u7ec4\uff0c\u5219\u8fd4\u56de\u8be5\u6570\u7ec4 optString(int index)\uff1a\u5982\u679c\u6570\u7ec4\u5143\u7d20\u662f\u5b57\u7b26\u4e32\uff0c\u5219\u8fd4\u56de\u8be5\u5b57\u7b26\u4e32\uff0c\u5426\u5219\u8fd4\u56de\u4e00\u4e2a\u7a7a\u5b57\u7b26\u4e32 optNumber(int index)\uff1a\u5982\u679c\u6570\u7ec4\u5143\u7d20\u662f\u6570\u5b57\uff0c\u5219\u8fd4\u56de\u8be5\u6570\u5b57\uff0c\u5426\u5219\u8fd4\u56de 0 \u793a\u4f8b\u4ee3\u7801\uff1a for (int i = 0; i < jsonArray.length(); i++) { if (jsonArray.get(i) instanceof JSONObject) { JSONObject jsonObject […]<\/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-39257","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39257","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=39257"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/39257\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=39257"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=39257"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=39257"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}