Spring Boot - 通用响应类
# 响应类
一个规范的响应不应该只返回各种数据，而是要有一个规范的结果响应类，下面给出我使用的结果响应类（放在 http 包里）：
/**
* @author kele-Bingtang
* @date 2022/4/30 14:47
* @note 响应对象
*/
public class Response<T> implements Serializable {
private static final long serialVersionUID = -464624820023286858L;
/** 自定义状态码 **/
private Integer code;
/** 状态码信息 **/
protected String status;
/** 消息 **/
private String message;
/** 时间戳 **/
private Long timestamp;
/** 数据 **/
protected transient T data;
public Integer getCode() {
return code;
}
public void setCode(Integer code) {
this.code = code;
}
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
public Long getTimestamp() {
return timestamp;
}
public void setTimestamp(Long timestamp) {
this.timestamp = timestamp;
}
public T getData() {
return data;
}
public void setData(T data) {
this.data = data;
}
public static <T> Response<T> instance() {
return new Response<>();
}
}
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然后使用工具类进行处理并返回
/**
* @author kele-Bingtang
* @date 2022/4/30 14:55
* @note 请求响应封装
*/
public class HttpResult {
private HttpResult() {
}
public static <T> Response<T> response(T data, ResponseStatusEnum responseStatusEnum) {
Response<T> response = Response.instance();
response.setData(data);
response.setCode(responseStatusEnum.getCode());
response.setStatus(responseStatusEnum.getStatus());
response.setMessage(responseStatusEnum.getMessage());
response.setTimestamp(Instant.now().atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
return response;
}
public static <T> Response<T> response(T data, ResponseStatusEnum responseStatusEnum, String message) {
Response<T> response = Response.instance();
response.setData(data);
response.setCode(responseStatusEnum.getCode());
response.setStatus(responseStatusEnum.getStatus());
response.setMessage(message);
response.setTimestamp(Instant.now().atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
return response;
}
public static <T> Response<Map<String, T>> response(String key, T data, ResponseStatusEnum status) {
Map<String, T> map = new HashMap<>(16);
Response<Map<String, T>> response = Response.instance();
map.put(key, data);
response.setData(map);
response.setCode(status.getCode());
response.setStatus(status.getStatus());
response.setMessage(status.getMessage());
response.setTimestamp(Instant.now().atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
return response;
}
public static <T> Response<T> response(T data, Integer code, String status, String message) {
Response<T> response = Response.instance();
response.setData(data);
response.setCode(code);
response.setStatus(status);
response.setMessage(message);
response.setTimestamp(Instant.now().atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
return response;
}
public static <T> Response<Map<String, T>> response(String key, T data, Integer code, String status, String message) {
Map<String, T> map = new HashMap<>(16);
Response<Map<String, T>> response = Response.instance();
map.put(key, data);
response.setData(map);
response.setCode(code);
response.setStatus(status);
response.setMessage(message);
response.setTimestamp(Instant.now().atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
return response;
}
public static <T> Response<T> ok(T data) {
Response<T> response = Response.instance();
response.setData(data);
response.setCode(ResponseStatusEnum.SUCCESS.getCode());
response.setStatus(ResponseStatusEnum.SUCCESS.getStatus());
response.setMessage(ResponseStatusEnum.SUCCESS.getMessage());
response.setTimestamp(Instant.now().atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
return response;
}
public static <T> Response<Map<String, T>> ok(String key, T data) {
Map<String, T> map = new HashMap<>(16);
Response<Map<String, T>> response = Response.instance();
map.put(key, data);
response.setData(map);
response.setCode(ResponseStatusEnum.SUCCESS.getCode());
response.setStatus(ResponseStatusEnum.SUCCESS.getStatus());
response.setMessage(ResponseStatusEnum.SUCCESS.getMessage());
response.setTimestamp(Instant.now().atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
return response;
}
public static <T> Response<T> okMessage(String message) {
Response<T> response = Response.instance();
response.setData(null);
response.setCode(ResponseStatusEnum.SUCCESS.getCode());
response.setStatus(ResponseStatusEnum.SUCCESS.getStatus());
response.setMessage(message);
response.setTimestamp(Instant.now().atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
return response;
}
public static <T> Response<T> fail(T data) {
Response<T> response = Response.instance();
response.setData(data);
response.setCode(ResponseStatusEnum.FAIL.getCode());
response.setStatus(ResponseStatusEnum.FAIL.getStatus());
response.setMessage(ResponseStatusEnum.FAIL.getMessage());
response.setTimestamp(Instant.now().atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
return response;
}
public static <T> Response<Map<String, T>> fail(String key, T data) {
Map<String, T> map = new HashMap<>(16);
Response<Map<String, T>> response = Response.instance();
map.put(key, data);
response.setData(map);
response.setCode(ResponseStatusEnum.FAIL.getCode());
response.setStatus(ResponseStatusEnum.FAIL.getStatus());
response.setMessage(ResponseStatusEnum.FAIL.getMessage());
response.setTimestamp(Instant.now().atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
return response;
}
public static <T> Response<T> fail(ResponseStatusEnum responseStatusEnum, String message) {
return returnResponse(responseStatusEnum, message);
}
public static <T> Response<T> failMessage(String message) {
Response<T> response = Response.instance();
response.setData(null);
response.setCode(ResponseStatusEnum.FAIL.getCode());
response.setStatus(ResponseStatusEnum.FAIL.getStatus());
response.setMessage(message);
response.setTimestamp(Instant.now().atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
return response;
}
public static <T> Response<T> failMessage(Integer code, String message) {
return returnResponse(code, message);
}
public static <T> Response<T> error(T data) {
Response<T> response = Response.instance();
response.setData(data);
response.setCode(ResponseStatusEnum.ERROR.getCode());
response.setStatus(ResponseStatusEnum.ERROR.getStatus());
response.setMessage(ResponseStatusEnum.ERROR.getMessage());
response.setTimestamp(Instant.now().atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
return response;
}
public static <T> Response<Map<String, T>> error(String key, T data) {
Map<String, T> map = new HashMap<>(16);
Response<Map<String, T>> response = Response.instance();
map.put(key, data);
response.setData(map);
response.setCode(ResponseStatusEnum.ERROR.getCode());
response.setStatus(ResponseStatusEnum.ERROR.getStatus());
response.setMessage(ResponseStatusEnum.ERROR.getMessage());
response.setTimestamp(Instant.now().atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
return response;
}
public static <T> Response<T> error(ResponseStatusEnum responseStatusEnum, String message) {
return returnResponse(responseStatusEnum, message);
}
public static <T> Response<T> errorMessage(String message) {
Response<T> response = Response.instance();
response.setData(null);
response.setCode(ResponseStatusEnum.ERROR.getCode());
response.setStatus(ResponseStatusEnum.ERROR.getStatus());
response.setMessage(message);
response.setTimestamp(Instant.now().atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
return response;
}
public static <T> Response<T> errorMessage(Integer code, String message) {
return returnResponse(code, message);
}
public static <T> Response<T> okOrFail(T data, String message) {
if (null == data) {
return response(null, ResponseStatusEnum.FAIL, ResponseStatusEnum.FAIL.getMessage());
}
return response(data, ResponseStatusEnum.SUCCESS, message);
}
public static <T> Response<T> okOrFail(T data) {
if (null == data) {
return response(null, ResponseStatusEnum.FAIL);
}
return response(null, ResponseStatusEnum.SUCCESS);
}
private static <T> Response<T> returnResponse(ResponseStatusEnum responseStatusEnum, String message) {
Response<T> response = Response.instance();
response.setData(null);
response.setCode(responseStatusEnum.getCode());
response.setStatus(responseStatusEnum.getStatus());
response.setMessage(message);
response.setTimestamp(Instant.now().atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
return response;
}
private static <T> Response<T> returnResponse(Integer code, String message) {
Response<T> response = Response.instance();
response.setData(null);
response.setCode(code);
response.setStatus(ResponseStatusEnum.ERROR.getStatus());
response.setMessage(message);
response.setTimestamp(Instant.now().atZone(ZoneId.systemDefault()).toInstant().toEpochMilli());
return response;
}
}
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一些常用的响应状态枚举类：
/**
* @author Young Kbt
* @date 2022/4/30 15:19
* @note 响应状态枚举类
*/
public enum ResponseStatusEnum {
/**
* 规范响应体中的响应码和响应信息
*/
SUCCESS(HttpServletResponse.SC_OK, "success", "操作成功"),
/**
* 操作失败
*/
FAIL(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "fail", "操作失败"),
/**
* 操作错误
*/
ERROR(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "error", "操作错误"),
/**
* 请求未授权
*/
UN_AUTHORIZED(HttpServletResponse.SC_UNAUTHORIZED, "fail", "请求未授权"),
/**
* 客户端请求未授权
*/
CLIENT_UN_AUTHORIZED(HttpServletResponse.SC_UNAUTHORIZED, "fail", "客户端请求未授权"),
/**
* 404 没找到请求
*/
NOT_FOUND(HttpServletResponse.SC_NOT_FOUND, "fail", "404 没找到请求"),
/**
* 消息不能读取
*/
MSG_NOT_READABLE(HttpServletResponse.SC_BAD_REQUEST, "fail", "消息不能读取"),
/**
* 不支持当前请求方法
*/
METHOD_NOT_SUPPORTED(HttpServletResponse.SC_METHOD_NOT_ALLOWED, "fail", "不支持当前请求方法"),
/**
* 不支持当前媒体类型
*/
MEDIA_TYPE_NOT_SUPPORTED(HttpServletResponse.SC_UNSUPPORTED_MEDIA_TYPE, "fail", "不支持当前媒体类型"),
/**
* 请求被拒绝
*/
REQ_REJECT(HttpServletResponse.SC_FORBIDDEN, "fail", "请求被拒绝"),
/**
* 服务器异常
*/
INTERNAL_SERVER_ERROR(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "fail", "服务器异常"),
/**
* 非法请求
*/
ILLEGALITY_REQUEST(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, "fail", "非法请求"),
/**
* 缺少必要的请求参数
*/
PARAM_MISS(HttpServletResponse.SC_BAD_REQUEST, "fail", "缺少必要的请求参数"),
/**
* 请求参数类型错误
*/
PARAM_TYPE_ERROR(HttpServletResponse.SC_BAD_REQUEST, "fail", "请求参数类型错误"),
/**
* 请求参数绑定错误
*/
PARAM_BIND_ERROR(HttpServletResponse.SC_BAD_REQUEST, "fail", "请求参数绑定错误"),
/**
* 参数校验失败
*/
PARAM_VALID_ERROR(HttpServletResponse.SC_BAD_REQUEST, "fail", "参数校验失败");
private Integer code;
private String status;
private String message;
ResponseStatusEnum(Integer code, String status, String message) {
this.code = code;
this.status = status;
this.message = message;
}
public Integer getCode() {
return code;
}
public void setCode(Integer code) {
this.code = code;
}
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
}
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如何使用呢？如下：
@RestController
public class UserController {
@GetMapping("/login")
public Response<String> login() {
return HttpResult.ok("login successfully！");
}
}
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Response 作为返回类型，指定返回的 data 是 String，然后用 HttpResult 的静态方法返回。
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更新时间: 2023/09/18, 16:34:13