如何使用java在json数组中添加子对象

debugcn 发表于 Dev

较少的

我有一个像这样的 json 数组：

数据：

     [
       {
         image_url:"www",
         testimonial_text: "The standard chunk of Lorem Ipsum used since the,
         name: "Rohith",
         designation: "Architect"
       }
      ]

但是我需要像这样使用java来转换它：

数据：

    [
     {
         image_url:"www",
         testimonial_text: "The standard chunk of Lorem Ipsum used since the,
         name: "Rohith",
         data2:[{ designation: "Architect"}]
     }
      ]

拉杰什

使用 Jackson JSON API 解析器，https://github.com/FasterXML/jackson

    String json = " [{ image_url:\"www\", testimonial_text: \"The standard chunk of Lorem Ipsum used since the\", name: \"Rohith\", designation: \"Architect\" }, "
            + "{ image_url:\"www\", testimonial_text: \"The standard chunk of Lorem Ipsum used since\", name: \"Rohith\", designation: \"Architect\" }]";

    byte[] jsonData = json.getBytes();

    ObjectMapper objectMapper = new ObjectMapper();
    objectMapper.configure(Feature.ALLOW_UNQUOTED_FIELD_NAMES, true);

    // create JsonNode
    JsonNode rootNode = objectMapper.readTree(jsonData);

    ObjectNode createDesignationNode = objectMapper.createObjectNode();
    Iterator<JsonNode> iterator = rootNode.iterator();

    while (iterator.hasNext()) {
        JsonNode jsonNode = (JsonNode) iterator.next();
        createDesignationNode.put("designation", jsonNode.get("designation"));

        ArrayNode createData2Array = objectMapper.createArrayNode();
        createData2Array.add(createDesignationNode);

        ((ObjectNode) jsonNode).remove("designation");
        ((ObjectNode) jsonNode).put("data2", createData2Array);

    }

    PrintStream out = System.out;
    objectMapper.writeValue(out, rootNode);

结果[{"image_url":"www","testimonial_text":"Lorem Ipsum 的标准块","name":"Rohith","data2":[{"designation":"Architect"}] },{"image_url":"www","testimonial_text":"Lorem Ipsum 使用的标准块","name":"Rohith","data2":[{"designation":"Architect"}]} ]

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