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[英]Spring Data Rest: RepositoryRestController deserialization from URI not working
[英]Spring Data Rest @RepositoryRestController and @RequestMapping
我想使用已将SDR的基本路径设置为“ / api”的@RepositoryRestController覆盖@RepositoryRestResource自动生成的控制器方法。
Spring Data Rest 3.0(及更早版本)说:
“此控制器(如代码段所示)将由RepositoryRestConfiguration.setBasePath中定义的同一API基本路径提供服务,所有其他RESTful端点(例如/ api)都使用该API。” https://docs.spring.io/spring-data/rest/docs/3.0.1.RELEASE/reference/html/#customizing-sdr.overriding-sdr-response-handlers (第15.4章)
但是,此代码段在类级别上没有@RequestMapping
。
我的SDR应用配置了RepositoryRestConfiguration对象
config.setBasePath("/api");
但是@RepositoryRestController
不会覆盖SDR的自动生成的控制器方法。
请考虑这篇文章的公认答案: Spring Data Rest控制器:@ BasePathAwareController,@ RepositoryRestController,@ Controller和@RestController的行为和用法
请帮助我理解这一点! :)
AppConf.java:
@Configuration
@Import(value = {DataConf.class})
@EnableWebMvc
@ComponentScan(value = "pl.mydomain.controller")
public class AppConf
{
@Bean
public RepositoryRestConfigurer repositoryRestConfigurer() {
return new RepositoryRestConfigurerAdapter() {
public void configureRepositoryRestConfiguration(RepositoryRestConfiguration config) {
config.setBasePath("/api");
}
};
}
}
TokenController.java:
@RepositoryRestController
public class TokenController
{
private TokenRepository repository;
@Autowired
public TokenController(TokenRepository tokenRepository) {
this.repository = tokenRepository;
}
@RequestMapping(method = GET, path = "/tokens")
public @ResponseBody ResponseEntity<?> tokens()
{
return ResponseEntity.ok("Hello");
}
}
TokenRepository.java:
@RepositoryRestResource(path = "tokens")
public interface TokenRepository extends CrudRepository<Token, Long>{
}
解决上述难题的关键是以正确的方式配置项目。 也就是说,将@ComponentScan
放在传递给AbstractAnnotationConfigDispatcherServletInitializer::getServletConfigClasses()
方法的类中(不在AppConf.java中传递给getRootConfigClasses()的类中)。
DispatcherConf.java:
public class DispatcherConf extends AbstractAnnotationConfigDispatcherServletInitializer {
@Override
protected Class<?>[] getRootConfigClasses() {
return new Class[] {AppConf.class};
}
@Override
protected Class<?>[] getServletConfigClasses() {
return new Class[] {WebConf.class}; // !!!
}
@Override
protected String[] getServletMappings() {
return new String[] {"/*"};
}
}
AppConf.java:
@Configuration
@Import({DataConf.class})
public class ApplicationConf
{
@Bean
public RepositoryRestConfigurer repositoryRestConfigurer() {
return new RepositoryRestConfigurerAdapter() {
@Override
public void configureRepositoryRestConfiguration(RepositoryRestConfiguration config) {
config.setBasePath("/api"); // !!!
}
};
}
}
DataConf.java:
@Configuration
@EnableJpaRepositories(basePackages = {
"pl.example.data.repository"
})
@EnableTransactionManagement
public class DataConf
{ ... }
WebConf.java:
@Import(RepositoryRestMvcConfiguration.class)
@ComponentScan({"pl.example.api.controller"}) // !!!
public class WebConf {
}
即使我解决了这个难题,我也不明白为什么会这样。 https://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/context/annotation/ComponentScan.html声明:
注释类型ComponentScan用于@Configuration类的组件扫描指令。
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