不行就再转一次吧，过来的 body 可能就是普通 JSON ，不是演示里那种压缩为一行的情况。

Demo:
```java
public class Main {
public static void main(String[] args) throws JsonProcessingException {
String body = """
{
"status": "OK",
"data": [
{
"id": 1,
"name": "data1"
},
{
"id": 2,
"name": "data2"
}
]
}
""";

// Jackson-databind -> pom.xml
ObjectMapper mapper = new ObjectMapper();
String body2 = mapper.writeValueAsString(body);
System.out.println("JSON to one line: " + body2);
}
}
```

Output:
```bash
JSON to one line: "{\n\t\"status\": \"OK\",\n\t\"data\": [\n\t\t{\n\t\t\t\"id\": 1,\n\t\t\t\"name\": \"data1\"\n\t\t},\n\t\t{\n\t\t\t\"id\": 2,\n\t\t\t\"name\": \"data2\"\n\t\t}\n\t]\n}\n"
```