java fastjson参数Date少了8小时

àì夳堔傛蜴生んèń 2024-03-17 09:35 59阅读 0赞

情景：

A人员服务变更了角色后，要通知B流程服务进行人员变更，用api，restful的方法进行通知。 A请求的参数是fastjson。

请求参数：

{
    	"reason": "测试变更",
    	"logID": 75,
    	"endDate": 1684512060000,
    	"workContent": "FLOW",
    	"dataEntryTime": 1684483157000,
    	"autoRecover": "0BT",
    	"dateEntryStaffName": "admin",
    	"staffBName": "测试-小王",
    	"beginDate": 1684425600000,
    	"staffBID": 133710,
    	"dateEntryStaffID": 1,
    	"stateTime": 1684483157000,
    	"isAllHasCommission": "0BF",
    	"staffName": "测试-小李",
    	"action": "MODIFY",
    	"state": "A",
    	"actionDate": 1681891141000,
    	"staffID": 98467653
    }

[时间戳转换网址][Link 1]

B流程服务接收到的是：

{
    	"reason": "测试变更",
    	"logID": 75,
    	"endDate": "2023-05-19T16:01:00.000+0000",
    	"workContent": "FLOW",
    	"dataEntryTime": "2023-05-19T07:59:17.000+0000",
    	"autoRecover": "0BT",
    	"dateEntryStaffName": "admin",
    	"staffBName": "测试-小王",
    	"beginDate": "2023-05-18T16:00:00.000+0000",
    	"staffBID": 133710,
    	"dateEntryStaffID": 1,
    	"stateTime": "2023-05-19T07:59:17.000+0000",
    	"isAllHasCommission": "0BF",
    	"staffName": "测试-小李",
    	"action": "MODIFY",
    	"state": "A",
    	"actionDate": "2023-04-19T07:59:01.000+0000",
    	"staffID": 98467653
    }

时间都变成字符串了，而且还少了8小时。

想着属性那边加个时区去解决：

@JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss", timezone = "GMT+8")
    private Date endDate;

但是是JSONObject的，没地方设置。这时候得在参数处理的时候进行设置。

@Bean
        public ObjectMapper jacksonObjectMapperCustomization() {
            TimeZone timeZone = TimeZone.getTimeZone("Asia/Shanghai");
            Jackson2ObjectMapperBuilder builder = new Jackson2ObjectMapperBuilder().timeZone(timeZone);
            return builder.build();
        }
    
        @Override
        public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
            converters.removeIf(c -> c instanceof MappingJackson2HttpMessageConverter);
            MappingJackson2HttpMessageConverter jackson2HttpMessageConverter = new MappingJackson2HttpMessageConverter(
                    jacksonObjectMapperCustomization());
            ObjectMapper objectMapper = new ObjectMapper();
            SimpleModule simpleModule = new SimpleModule();
            simpleModule.addSerializer(Long.class, StringSerializer.instance);
            simpleModule.addSerializer(Long.TYPE, StringSerializer.instance);
            objectMapper.registerModule(simpleModule);
            objectMapper.setTimeZone(TimeZone.getTimeZone("GMT+8"));
            objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
            jackson2HttpMessageConverter.setObjectMapper(objectMapper);
            converters.add(jackson2HttpMessageConverter);
            converters.add(new ByteArrayHttpMessageConverter());
            converters.add(new FormHttpMessageConverter());
            converters.add(new StringHttpMessageConverter(Charset.forName("UTF-8")));
        }

设置了然后并没有作用。

### 处理：用实体类接收 ###

@ApiModel(value = "AB角变更参数类")
    @Data
    public class StaffRoleParam2 {
        private String logID;
    
        private String staffID;
    
        private String staffName;
    
        private Date beginDate;
    
        private Date endDate;
    
        private String reason;
    
        private String autoRecover;
    
        private String state;
    
        private Date stateTime;
    
        private String staffBID;
    
        private String staffBName;
    
        private String dateEntryStaffID;
    
        private String dateEntryStaffName;
    
        private Date dataEntryTime;
    
        private String msgType;
    
        private String isAllHasCommission;
    
        private String workContent;
    
        private Date actionDate;
    
        private String opAction;
    }

改成用实体类接收，就正常了。时间用Date类型。

### 总结： ###

对于不同服务间接口调用，如果时间是Date类型的，用fastjson处理的话，会变成字符串，还可能导致时差，这时候最好用用对象实体类参数取接收，还好进行备注，便于维护处理。

[Link 1]: https://tool.lu/timestamp/