springboot中使用jackson

第一步 ： 引入maven依賴

<!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind -->
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.11.2</version>
</dependency>

注：如果報java.lang.ClassNotFoundException: com.fasterxml.jackson.core.JsonProcessingException錯誤，肯能是版本匹配問題，調整版本即可使用

第二步：使用

public class JacksonUtils {

    public static String getJson(Object object){
        return getJson(object,"");
    }

    public static String getJson(Object object,String dateFormat){
        ObjectMapper objectMapper = new ObjectMapper();
        objectMapper.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS,false);

        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(dateFormat);
        objectMapper.setDateFormat(simpleDateFormat);

        try {
            return objectMapper.writeValueAsString(object);
        } catch (JsonProcessingException e) {
            e.printStackTrace();
        }
        return "";
    }
}