先建一个工具类如
RestResponse.java
package com.ibaiqi.news.sqgov.tool; import com.fasterxml.jackson.annotation.JsonFormat; import com.fasterxml.jackson.annotation.JsonInclude; import java.io.Serializable; import java.util.Date; /** * * @author wangyushuai@fang.com * @date 2018/9/26 * REST请求响应工具类 ,在controller控制器中,做为接口返回值 return RestResponse.buildSuccess(articles); */ public class RestResponse implements Serializable { private final static long serialVersionUID = 1L; /** * 成功 */ private final static int STATUS_SUCCESS = 200; /** * 代码错误 */ private final static int STATUS_ERROR_INTERNAL_SERVER_ERROR = 500; /** * 服务不可用(针对熔断&服务降级的情况) */ private final static int STATUS_ERROR_SERVICE_UNAVAILIABLE = 503; private int status; //@JsonInclude(JsonInclude.Include.NON_NULL)//不为空时,返回 private Object data; private String message; /** * 时间戳并格式化 */ @JsonFormat(pattern = "yyyy-MM-dd hh:mm:ss",locale = "lz",timezone = "GMT+8") private Date timestamp; /** * 程序耗时 */ //@JsonIgnore//不返回注解 private long time; public RestResponse(int code, String message, Object data) { super(); this.status = code; this.message = message; this.data = data; } /** * 请求成功 * @param data * @return */ public static RestResponse buildSuccess(Object data) { return new RestResponse(STATUS_SUCCESS, "success", data); } /** * 代码错误 * @param data * @return */ public static RestResponse buildError_InternalServerError(Object data) { return new RestResponse(STATUS_ERROR_INTERNAL_SERVER_ERROR, "error", data); } /** * 返回错误码(服务不可用时,返回此方法),但推荐直接使用异常类 * @param data * @return */ public static RestResponse buildError_ServiceUnavailable(Object data) { return new RestResponse(STATUS_ERROR_SERVICE_UNAVAILIABLE, "error", data); } // public static RestResponse buildError(Object data) { // return new RestResponse(STATUS_SUCCESS, "success", data); // } public int getStatus() { return status; } public void setStatus(int status) { this.status = status; } public Object getData() { return data; } public void setData(Object data) { this.data = data; } public String getMessage() { return message; } public void setMessage(String message) { this.message = message; } public Date getTimestamp() { return new Date(); } public void setTimestamp(Date timestamp) { this.timestamp = timestamp; } public String getTime() { return time + "ms"; } public void setTime(long time) { this.time = time; } }
2:控制器类controller 类中方法引用
@RestController @RequestMapping("/api") @Api("政务要闻文章Controller接口") @CrossOrigin(origins = "*", maxAge = 3600) public class ArticlesController { @Resource ArticlesService articlesService; /** * 列出Articles且带上分页信息 * * @return */ @GetMapping("/V1/articlesResResult/{pageSize}") @ResponseBody @ApiOperation(value = "列出文章,且带分页信息", notes = "返回Articles对象的集合") public RestResponse articlesResResult( @ApiParam(name = "pageSize", value = "输入每页显示页数", defaultValue = "3", required = true) @PathVariable Integer pageSize ) { // Map<String, Object> map = new HashMap<>(); PageInfo<Articles> articles = articlesService.listArticles(1, pageSize); // map.put("data",articles); // map.put("msg","查询所有用户及分页信息成功"); // return RestResponse.buildSuccess(map); return RestResponse.buildSuccess(articles); } }