添加了消息转换器导致knife4j不能访问
<dependency>
<groupId>com.github.xiaoymin</groupId>
<artifactId>knife4j-openapi3-spring-boot-starter</artifactId>
<version>4.4.0</version>
</dependency>
package com.answer.utils;
import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.module.SimpleModule;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateDeserializer;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
import com.fasterxml.jackson.datatype.jsr310.deser.LocalTimeDeserializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateSerializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
import com.fasterxml.jackson.datatype.jsr310.ser.LocalTimeSerializer;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.format.DateTimeFormatter;
import static com.fasterxml.jackson.databind.DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES;
/**
* 对象映射器:基于jackson将Java对象转为json,或者将json转为Java对象
* 将JSON解析为Java对象的过程称为 [从JSON反序列化Java对象]
* 从Java对象生成JSON的过程称为 [序列化Java对象到JSON]
*/
public class JacksonObjectMapper extends ObjectMapper {
public static final String DEFAULT_DATE_FORMAT = "yyyy-MM-dd";
public static final String DEFAULT_DATE_TIME_FORMAT = "yyyy-MM-dd HH:mm:ss";
// public static final String DEFAULT_DATE_TIME_FORMAT = "yyyy-MM-dd HH:mm";
public static final String DEFAULT_TIME_FORMAT = "HH:mm:ss";
public JacksonObjectMapper() {
super();
// //收到未知属性时不报异常
this.configure(FAIL_ON_UNKNOWN_PROPERTIES, false);
//反序列化时,属性不存在的兼容处理
this.getDeserializationConfig().withoutFeatures(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
SimpleModule simpleModule = new SimpleModule()
.addDeserializer(LocalDateTime.class, new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern(DEFAULT_DATE_TIME_FORMAT)))
.addDeserializer(LocalDate.class, new LocalDateDeserializer(DateTimeFormatter.ofPattern(DEFAULT_DATE_FORMAT)))
.addDeserializer(LocalTime.class, new LocalTimeDeserializer(DateTimeFormatter.ofPattern(DEFAULT_TIME_FORMAT)))
.addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(DateTimeFormatter.ofPattern(DEFAULT_DATE_TIME_FORMAT)))
.addSerializer(LocalDate.class, new LocalDateSerializer(DateTimeFormatter.ofPattern(DEFAULT_DATE_FORMAT)))
.addSerializer(LocalTime.class, new LocalTimeSerializer(DateTimeFormatter.ofPattern(DEFAULT_TIME_FORMAT)));
//注册功能模块 例如,可以添加自定义序列化器和反序列化器
this.registerModule(simpleModule);
}
}
配置类
@Configuration
@Slf4j
public class WebMvcConfiguration extends WebMvcConfigurationSupport {
@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
//配置拦截器访问静态资源
registry.addResourceHandler("/doc.html","/swagger-ui.html")
.addResourceLocations("classpath:/META-INF/resources/");
registry.addResourceHandler("/favicon.ico")
.addResourceLocations("classpath:/META-INF/resources/");
registry.addResourceHandler("/webjars/**")
.addResourceLocations("classpath:/META-INF/resources/webjars/");
registry.addResourceHandler("/v3/**")
.addResourceLocations("classpath:/META-INF/resources/v3/");
registry.addResourceHandler("/static/user_avatar/**")
//.addResourceLocations("classpath:/static/images/");
.addResourceLocations("file:D:/javaProject/sky-take-out/images/");
}
@Override
protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
log.info("扩展消息");
//消息转化器对象
MappingJackson2HttpMessageConverter cover = new MappingJackson2HttpMessageConverter();
// 对象转化器 JacksonObjectMapper(自定义 例如下段代码内容)
cover.setObjectMapper(new JacksonObjectMapper());
// 将自己的转化器加入容器中
converters.add(0,cover);
}
}
不配置消息转换器确实可以,如果配置消息转换器的情况下该如何解决?