151 lines
4.1 KiB
Java
151 lines
4.1 KiB
Java
package io.github.ehlxr.common;
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import com.fasterxml.jackson.annotation.JsonInclude;
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import com.fasterxml.jackson.core.JsonProcessingException;
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import com.fasterxml.jackson.databind.ObjectMapper;
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import com.fasterxml.jackson.databind.SerializationFeature;
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import com.google.common.base.Strings;
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import com.google.common.base.Throwables;
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import io.github.ehlxr.enums.CodeEnum;
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import java.io.Serializable;
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import java.text.SimpleDateFormat;
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import java.util.Objects;
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/**
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* 统一输出结果集
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*
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* @author ehlxr
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* @since 2020/3/18.
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*/
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@JsonInclude(JsonInclude.Include.NON_NULL)
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public class Result<T> implements Serializable {
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private static final long serialVersionUID = 2247338010219468245L;
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/**
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* 响应编码
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*/
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private int code;
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/**
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* 消息，如错误消息
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*/
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private String message;
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/**
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* 数据内容
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*/
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private T data;
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private Result() {
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}
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private Result(int code, T data, String message) {
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this.code = code;
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this.data = data;
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this.message = message;
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}
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public static <T> Result<T> success(T data, String message) {
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return new Result<>(CodeEnum.SUCCESSFUL.getCode(), data, message);
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}
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public static <T> Result<T> success(T data) {
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return success(data, null);
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}
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public static <T> Result<T> success() {
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return success(null);
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}
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public static <T> Result<T> of(int c, T d, String m) {
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return new Result<>(c, d, m);
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}
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public static <T> Result<T> of(CodeEnum c, T d, String m) {
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return new Result<>(c.getCode(), d, m);
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}
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public static <T> Result<T> fail(CodeEnum codeEnum, String message) {
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return of(codeEnum.getCode(), null, message);
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}
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public static <T> Result<T> fail(CodeEnum codeEnum) {
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return fail(codeEnum, codeEnum.getMessage());
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}
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public static <T> Result<T> fail(Throwable e) {
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// 格式化异常消息，防止输出异常栈信息到结果集
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e = Throwables.getRootCause(e);
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return of(CodeEnum.UNKNOWN_EXCEPTION.getCode(), null, String.format("%s: %s", e.getClass().getSimpleName(), e.getMessage()));
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}
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public String getMessage() {
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// return Strings.isNullOrEmpty(m) ? c.getMessage() : m;
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if (Strings.isNullOrEmpty(message)) {
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CodeEnum codeEnum;
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try {
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codeEnum = CodeEnum.code(this.code);
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} catch (Exception e) {
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return message;
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}
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return Objects.isNull(codeEnum) ? "" : codeEnum.getMessage();
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}
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return message;
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}
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public void setMessage(String message) {
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this.message = message;
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}
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public int getCode() {
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// return Objects.nonNull(c) ? c.getCode() : Code.UNKNOWN_EXCEPTION.getCode();
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return code;
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}
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public void setCode(int code) {
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this.code = code;
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}
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public T getData() {
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return data;
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}
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public void setData(T data) {
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this.data = data;
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}
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@Override
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public boolean equals(Object o) {
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if (this == o) {
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return true;
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}
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if (o == null || getClass() != o.getClass()) {
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return false;
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}
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Result<?> result = (Result<?>) o;
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return code == result.code &&
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Objects.equals(message, result.message) &&
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Objects.equals(data, result.data);
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}
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@Override
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public String toString() {
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try {
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ObjectMapper om = new ObjectMapper();
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// 取消时间的转化格式, 默认是时间戳
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om.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
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// 设置时间格式
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om.setDateFormat(new SimpleDateFormat("yyyy-MM-dd HH:mm:ss"));
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om.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
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om.configure(SerializationFeature.WRITE_SINGLE_ELEM_ARRAYS_UNWRAPPED, false);
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return om.writeValueAsString(this);
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} catch (JsonProcessingException e) {
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return "";
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}
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}
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public static void main(String[] args) {
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System.out.println(success());
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}
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}
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