自定义响应结构 AjaxResult（）

package com.dsj.gdbd.utils.ajax;import com.fasterxml.jackson.databind.JsonNode;import com.fasterxml.jackson.databind.ObjectMapper;import java.io.Serializable;import java.util.List;/** * @Description: 自定义响应结构 * @Author: DGBD * @CreateDate: 2018/12/21 16:27 * @UpdateUser: yc * @UpdateDate: 2018/12/21 16:27 * @UpdateRemark: 修改内容 * @博客地址: https://www.cnblogs.com/mlq2017/ * @Version: 1.0 */public class AjaxResult implements Serializable { ???// 定义jackson对象 ???private static final ObjectMapper MAPPER = new ObjectMapper(); ???/*** ????* 响应业务状态 ????*/ ???private Integer status; ???/*** ????* 响应消息 ????*/ ???private String msg; ???/*** ????* 响应中的数据 ????*/ ???private Object data; ???public static AjaxResult build(Integer status, String msg, Object data) { ???????return new AjaxResult(status, msg, data); ???} ???public static AjaxResult ok(Object data) { ???????return new AjaxResult(data); ???} ???public static AjaxResult ok() { ???????return new AjaxResult(null); ???} ???public AjaxResult() { ???} ???public static AjaxResult build(Integer status, String msg) { ???????return new AjaxResult(status, msg, null); ???} ???public AjaxResult(Integer status, String msg, Object data) { ???????this.status = status; ???????this.msg = msg; ???????this.data = data; ???} ???public AjaxResult(Object data) { ???????this.status = 200; ???????this.msg = "OK"; ???????this.data = data; ???}// ???public Boolean isOK() {// ???????return this.status == 200;// ???} ???public Integer getStatus() { ???????return status; ???} ???public void setStatus(Integer status) { ???????this.status = status; ???} ???public String getMsg() { ???????return msg; ???} ???public void setMsg(String msg) { ???????this.msg = msg; ???} ???public Object getData() { ???????return data; ???} ???public void setData(Object data) { ???????this.data = data; ???} ???/** ????* 将json结果集转化为TaotaoResult对象 ????* ????* @param jsonData json数据 ????* @param clazz ???TaotaoResult中的object类型 ????* @return ????*/ ???public static AjaxResult formatToPojo(String jsonData, Class<?> clazz) { ???????try { ???????????if (clazz == null) { ???????????????return MAPPER.readValue(jsonData, AjaxResult.class); ???????????} ???????????JsonNode jsonNode = MAPPER.readTree(jsonData); ???????????JsonNode data = jsonNode.get("data"); ???????????Object obj = null; ???????????if (clazz != null) { ???????????????if (data.isObject()) { ???????????????????obj = MAPPER.readValue(data.traverse(), clazz); ???????????????} else if (data.isTextual()) { ???????????????????obj = MAPPER.readValue(data.asText(), clazz); ???????????????} ???????????} ???????????return build(jsonNode.get("status").intValue(), jsonNode.get("msg").asText(), obj); ???????} catch (Exception e) { ???????????return null; ???????} ???} ???/** ????* 没有object对象的转化 ????* ????* @param json ????* @return ????*/ ???public static AjaxResult format(String json) { ???????try { ???????????return MAPPER.readValue(json, AjaxResult.class); ???????} catch (Exception e) { ???????????e.printStackTrace(); ???????} ???????return null; ???} ???/** ????* Object是集合转化 ????* ????* @param jsonData json数据 ????* @param clazz ???集合中的类型 ????* @return ????*/ ???public static AjaxResult formatToList(String jsonData, Class<?> clazz) { ???????try { ???????????JsonNode jsonNode = MAPPER.readTree(jsonData); ???????????JsonNode data = jsonNode.get("data"); ???????????Object obj = null; ???????????if (data.isArray() && data.size() > 0) { ???????????????obj = MAPPER.readValue(data.traverse(), ???????????????????????MAPPER.getTypeFactory().constructCollectionType(List.class, clazz)); ???????????} ???????????return build(jsonNode.get("status").intValue(), jsonNode.get("msg").asText(), obj); ???????} catch (Exception e) { ???????????return null; ???????} ???}}