导入的maven依赖

<!--json-->
<dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><version>2.10.0</version>
</dependency>

示例代码

json要是String类型

public static void main(String[] args) throws Exception {String requestJson1 = "{\n" +"  \"header\": {\n" +"    \"app_id\": \"" + appid + "\",\n" +"    \"status\":2\n" +"  },\n" +"  \"parameter\": {\n" +"    \"s15282f39\": {\n" +"      \"category\": \"ch_en_public_cloud\",\n" +"      \"result\": {\n" +"        \"encoding\": \"utf8\",\n" +"        \"compress\": \"raw\",\n" +"        \"format\": \"plain\"\n" +"      }\n" +"    },\n" +"    \"s5eac762f\": {\n" +"      \"result_type\": \"" + RESULT_TYPE + "\",\n" +"      \"result\": {\n" +"        \"encoding\": \"utf8\",\n" +"        \"compress\": \"raw\",\n" +"        \"format\": \"plain\"\n" +"      }\n" +"    }\n" +"  },\n" +"  \"payload\": {\n" +"    \"test\": {\n" +"      \"encoding\": \"" + "a" + "\",\n" +"      \"image\": \"" + "11" + "\",\n" + "      \"status\": 3\n" + "    }\n" + "  }\n" + "}";prettyPrint(requestJson1);ObjectMapper mapper = new ObjectMapper();        Object obj = mapper.readValue(requestJson1, Object.class);System.out.println(mapper.writerWithDefaultPrettyPrinter().writeValueAsString(obj));}
}

输出效果的json示例