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[英]Spring Boot Data REST, HATEOAS not working with a custom Controller
[英]Spring Boot: HATEOAS and custom JacksonObjectMapper
将 HATEOAS 的依赖项添加到 Maven 后,Spring Boot 无法启动:
添加依赖:
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-hateoas</artifactId>
</dependency>
完整的 pom.xml:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.5.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>ru.example</groupId>
<artifactId>testapp</artifactId>
<version>1.0</version>
<name>testapp</nAfter I added dependency for HATEOAS to Maven, Spring Boot does not startame>
<description>Test</description>
<properties>
<java.version>1.8</java.version>
<h2.version>1.4.200</h2.version>
<jackson-json.version>2.10.2</jackson-json.version>
<jsoup.version>1.12.1</jsoup.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-hateoas</artifactId>
</dependency>
<dependency>
<groupId>org.hibernate.validator</groupId>
<artifactId>hibernate-validator</artifactId>
<version>6.0.17.Final</version>
</dependency>
<dependency>
<groupId>org.jsoup</groupId>
<artifactId>jsoup</artifactId>
<version>${jsoup.version}</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
<version>5.3.0.RELEASE</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<version>${h2.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson-json.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.datatype</groupId>
<artifactId>jackson-datatype-hibernate5</artifactId>
<version>${jackson-json.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.datatype</groupId>
<artifactId>jackson-datatype-jsr310</artifactId>
<version>${jackson-json.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
安全配置类:
package ru.example.testapp;
import lombok.RequiredArgsConstructor;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import ru.example.testapp.dao.UserRepository;
import ru.example.testapp.service.UserServiceImpl;
@Configuration
@RequiredArgsConstructor
public class SecurityConfig extends WebSecurityConfigurerAdapter {
private final UserRepository userRepository;
@Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
auth
.userDetailsService(new UserServiceImpl(userRepository))
.passwordEncoder(new BCryptPasswordEncoder());
}
protected void configure(final HttpSecurity http) throws Exception {
http
.authorizeRequests()
.antMatchers("/rest/admin/**").hasRole("ADMIN").and().httpBasic().and()
.authorizeRequests()
.antMatchers("/rest/user/**").hasAnyRole("USER","ADMIN").and().httpBasic().and()
.authorizeRequests().and()
.csrf().ignoringAntMatchers("/rest/**");
}
}
JacksonObjectMapper.class:
package ru.example.testapp.util.json;
import com.fasterxml.jackson.annotation.JsonAutoDetect;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.PropertyAccessor;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.fasterxml.jackson.datatype.hibernate5.Hibernate5Module;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
import org.springframework.stereotype.Component;
@Component
public class JacksonObjectMapper extends ObjectMapper {
private static final ObjectMapper MAPPER = new JacksonObjectMapper();
public static ObjectMapper getMapper() {
return MAPPER;
}
private JacksonObjectMapper() {
registerModule(new Hibernate5Module());
registerModule(new JavaTimeModule());
configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.NONE);
setVisibility(PropertyAccessor.FIELD, JsonAutoDetect.Visibility.ANY);
setSerializationInclusion(JsonInclude.Include.NON_NULL);
}
}
在控制台中,我有以下错误:
org.springframework.beans.factory.UnsatisfiedDependencyException:创建名为“securityConfig”的 bean 时出错:通过方法“setContentNegotationStrategy”参数 0 表示的不满意依赖; 嵌套异常是 org.springframework.beans.factory.UnsatisfiedDependencyException:创建名为 'org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration$EnableWebMvcConfiguration' 的 bean 时出错:通过方法 'setConfigurers' 参数 0 表示的不满意依赖; 嵌套异常是 org.springframework.beans.factory.UnsatisfiedDependencyException:在类路径资源 [org/springframework/hateoas/config/WebMvcHateoasConfiguration.class] 中定义的名称为“hypermediaWebMvcConfigurer”的 bean 创建时出错:通过方法“hypermediaWebMvcConfigurer”参数表示的不满意依赖; 嵌套异常是 org.springframework.beans.factory.BeanCreationException:在类路径资源 [org/springframework/hateoas/config/HateoasConfiguration.class] 中定义的名称为“hypermediaWebMvcConverters”的 bean 创建时出错:通过工厂方法的 Bean 实例化失败; 嵌套异常是 org.springframework.beans.BeanInstantiationException:无法实例化 [org.springframework.hateoas.config.WebConverters]:工厂方法“hypermediaWebMvcConverters”抛出异常; 嵌套异常是 java.lang.IllegalStateException: Failed copy(): ru.example.wmanage.util.json.JacksonObjectMapper (version: 2.10.2) 不覆盖 copy(); 它必须
可能是什么问题呢? 错误 - 与 securityConfig、JacksonObjectMapper 和 hatoas 相关的内容。 如果我在依赖项中删除 spring-boot-starter-hateoas,则一切正常。 但我需要仇恨。 请帮忙。
更新:使用带有注释@Component 的自定义 JacksonObjectMapper 时会出现问题。 一旦 spring-boot-starter-hateoas 添加到依赖项,Spting Boot 就不会启动。
问题:如何一起使用自定义 JacksonObjectMapper 和 hatoas?
问题未解决
我认为您没有任何理由扩展 ObjectMapper。 您应该像平常一样实例化一个 ObjectMapper,然后通过其公开的方法对其进行配置,并将其注册为您的配置中的 bean。
@Bean
public ObjectMapper createMapper() {
return new ObjectMapper().registerModule(new Hibernate5Module());
.registerModule(new JavaTimeModule());
.configure(SerializationFeature.WRITE_DATES_AS_TIMESTAMPS, false);
.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false);
.setVisibility(PropertyAccessor.ALL, JsonAutoDetect.Visibility.NONE);
.setVisibility(PropertyAccessor.FIELD, JsonAutoDetect.Visibility.ANY);
.setSerializationInclusion(JsonInclude.Include.NON_NULL);
}
我不知道为什么不应该扩展 ObjectMapper。 可能 Deadron Mar 可以解释,但这门课不是最终的。 就我而言,它在我们的整体框架中得到了深入扩展,我收到了相同的错误消息。
我刚刚做了另一个扩展
@Component
public class MyCustomizedMapper extends AnotherExtendedMapper {
public MyCustomizedMapper copy() {
return new MyCustomizedMapper(); // we have default constructor for this
` }
}
并想知道 - 它有效)
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