SpringBoot 字符串与对象相互转化封装

package com.shadowolf.base_project.utils;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.util.StringUtils;

import java.io.IOException;

public class JsonUtils {

private static ObjectMapper objectMapper = new ObjectMapper();

// 对象转字符串
public static <T> String obj2string(T obj) {
if (obj == null) {
return null;
}
try {
return obj instanceof String ? (String) obj : objectMapper.writeValueAsString(obj);
} catch (JsonProcessingException e) {
e.printStackTrace();
return null;
}
}

// 字符串转对象
public static <T> T string2Obj(String str, Class<T> clazz) {
if (StringUtils.isEmpty(str) || clazz == null) {
return null;
}
try {
return clazz.equals(String.class) ? (T) str : objectMapper.readValue(str, clazz);
} catch (IOException e) {
e.printStackTrace();
return null;
}
}

}