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Long转json精度丢失的配置 未生效

pull/3100/head
zhangdaiscott 2021-09-14 18:12:16 +08:00
parent a351204865
commit 1998867ca6
1 changed files with 16 additions and 12 deletions
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28
jeecg-boot/jeecg-boot-base/jeecg-boot-base-core/src/main/java/org/jeecg/config/WebMvcConfiguration.java
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@ -1,15 +1,17 @@
package org.jeecg.config;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.actuate.trace.http.InMemoryHttpTraceRepository;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Conditional;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.context.annotation.Primary;
import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;
import org.springframework.web.cors.CorsConfiguration;
import org.springframework.web.cors.UrlBasedCorsConfigurationSource;
import org.springframework.web.filter.CorsFilter;
@ -17,8 +19,6 @@ import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
import java.util.List;
/**
* Spring Boot 2.0 解决跨域问题
*
@ -71,20 +71,24 @@ public class WebMvcConfiguration implements WebMvcConfigurer {
return new CorsFilter(urlBasedCorsConfigurationSource);
}
/**
* 添加Long转json精度丢失的配置
* @Return: void
*/
@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
MappingJackson2HttpMessageConverter jackson2HttpMessageConverter = new MappingJackson2HttpMessageConverter();
* 序列换成json时,将所有的long变成string
* js中long过长精度丢失
*/
@Bean
@Primary
@ConditionalOnMissingBean(ObjectMapper.class)
public ObjectMapper jacksonObjectMapper(Jackson2ObjectMapperBuilder builder) {
ObjectMapper objectMapper = new ObjectMapper();
SimpleModule simpleModule = new SimpleModule();
//忽略在json字符串中存在，在java类中不存在字段，防止错误。
objectMapper.configure(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES, false);
objectMapper.configure(DeserializationFeature.READ_ENUMS_USING_TO_STRING, true);
simpleModule.addSerializer(Long.class, ToStringSerializer.instance);
simpleModule.addSerializer(Long.TYPE, ToStringSerializer.instance);
objectMapper.registerModule(simpleModule);
jackson2HttpMessageConverter.setObjectMapper(objectMapper);
converters.add(jackson2HttpMessageConverter);
return objectMapper;
}
/**