{"id":28214,"date":"2024-03-16T09:56:20","date_gmt":"2024-03-16T09:56:20","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-to-extract-the-value-of-a-json-node-using-fastjson\/"},"modified":"2024-03-22T12:54:45","modified_gmt":"2024-03-22T12:54:45","slug":"how-to-extract-the-value-of-a-json-node-using-fastjson","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-to-extract-the-value-of-a-json-node-using-fastjson\/","title":{"rendered":"How to extract the value of a JSON node using Fastjson?"},"content":{"rendered":"

You can retrieve the value of a JSON node using the fastjson library in the following way:<\/p>\n

    \n
  1. Parse the JSON string into a JSONObject.<\/li>\n<\/ol>\n
    String jsonString = \"{\\\"name\\\":\\\"John\\\", \\\"age\\\":30, \\\"city\\\":\\\"New York\\\"}\";\r\nJSONObject jsonObject = JSON.parseObject(jsonString);\r\n<\/code><\/pre>\n
      \n
    1. Retrieve the value of a node using the get method.<\/li>\n<\/ol>\n
      String name = jsonObject.getString(\"name\");\r\nint age = jsonObject.getInteger(\"age\");\r\nString city = jsonObject.getString(\"city\");\r\n<\/code><\/pre>\n
        \n
      1. If the value of the node is a nested JSON object, you can continue to use JSONObject to retrieve it.<\/li>\n<\/ol>\n
        String address = jsonObject.getJSONObject(\"address\").getString(\"street\");\r\n<\/code><\/pre>\n
          \n
        1. If the value of the node is an array, you can retrieve it using JSONArray.<\/li>\n<\/ol>\n
          JSONArray jsonArray = jsonObject.getJSONArray(\"hobbies\");\r\nfor (int i = 0; i < jsonArray.size(); i++) {\r\n    String hobby = jsonArray.getString(i);\r\n    System.out.println(hobby);\r\n}\r\n<\/code><\/pre>\n
          Note: In the above code, it is necessary to include the dependency of the fastjson library and use the JSON.parseObject method to parse the json string into a JSONObject object.<\/p>\n","protected":false},"excerpt":{"rendered":"
          You can retrieve the value of a JSON node using the fastjson library in the following way: Parse the JSON string into a JSONObject. String jsonString = “{\\”name\\”:\\”John\\”, \\”age\\”:30, \\”city\\”:\\”New York\\”}”; JSONObject jsonObject = JSON.parseObject(jsonString); Retrieve the value of a node using the get method. String name = jsonObject.getString(“name”); int age = jsonObject.getInteger(“age”); String city […]<\/p>\n","protected":false},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-28214","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\nHow to extract the value of a JSON node using Fastjson? - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/blog\/how-to-extract-the-value-of-a-json-node-using-fastjson\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to extract the value of a JSON node using Fastjson?\" \/>\n<meta property=\"og:description\" content=\"You can retrieve the value of a JSON node using the fastjson library in the following way: Parse the JSON string into a JSONObject. String jsonString = "{"name":"John", "age":30, "city":"New York"}"; JSONObject jsonObject = JSON.parseObject(jsonString); Retrieve the value of a node using the get method. String name = jsonObject.getString("name"); int age = jsonObject.getInteger("age"); String city […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/blog\/how-to-extract-the-value-of-a-json-node-using-fastjson\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/SiliCloudGlobal\/\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-16T09:56:20+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-03-22T12:54:45+00:00\" \/>\n<meta name=\"author\" content=\"Jackson Davis\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:site\" content=\"@SiliCloudGlobal\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jackson Davis\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-extract-the-value-of-a-json-node-using-fastjson\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-extract-the-value-of-a-json-node-using-fastjson\/\"},\"author\":{\"name\":\"Jackson Davis\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/#\/schema\/person\/55a10b8b0457c35884c25677889ad350\"},\"headline\":\"How to extract the value of a JSON node using Fastjson?\",\"datePublished\":\"2024-03-16T09:56:20+00:00\",\"dateModified\":\"2024-03-22T12:54:45+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-extract-the-value-of-a-json-node-using-fastjson\/\"},\"wordCount\":111,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.silicloud.com\/blog\/#organization\"},\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/blog\/how-to-extract-the-value-of-a-json-node-using-fastjson\/\",\"url\":\"https:\/\/www.silicloud.com\/blog\/how-to-extract-the-value-of-a-json-node-using-fastjson\/\",\"name\":\"How to extract the value of a JSON node using Fastjson? 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