假设我有一个类似的存储库:
public interface MyRepository extends PagingAndSortingRepository<MyEntity, String> {
@Query("....")
Page<MyEntity> findByCustomField(@Param("customField") String customField, Pageable pageable);
}
这非常有效.但是,如果客户端发送已形成的请求(例如,搜索不存在的字段),则Spring将异常作为JSON返回.揭示@Query等等
// This is OK
http://example.com/data-rest/search/findByCustomField?customField=ABC
// This is also OK because "secondField" is a valid column and is mapped via the Query
http://example.com/data-rest/search/findByCustomField?customField=ABC&sort=secondField
// This throws an exception and sends the exception to the client
http://example.com/data-rest/search/findByCustomField?customField=ABC&sort=blahblah
抛出并发送给客户端的异常示例:
{
message:null,
cause: {
message: 'org.hibernate.QueryException: could not resolve property: blahblah...'
}
}
我该如何处理这些例外情况？通常,我使用的@ExceptionHandler是我的MVC控制器,但我没有使用Data Rest API和客户端之间的层.我是不是该？
谢谢.
java exception-handling spring-data spring-data-jpa spring-data-rest
我似乎无法在以下任何位置映射我的存储库:
@RepositoryRestResource(collectionResourceRel = "item", path = "item")
public interface ItemRepository extends PagingAndSortingRepository<Item, Long> {
我以为我可以用:
path = "/some/other/path/item"
但映射无法解决.我明白了:
HTTP ERROR 404
Problem accessing /some/other/path/item. Reason:
Not Found
在spring-data中,javadoc path定义为:"用于导出此资源的路径段."
我究竟做错了什么？
我使用基于Spring Java的配置来配置Spring Data的多个数据库.在配置文件中,我正在创建两个data sourcefor MySQL和MSSQL-Server.当尝试使用@Resource注释向实体管理器注入依赖项时,我遇到以下异常:
org.springframework.beans.factory.NoUniqueBeanDefinitionException: No qualifying bean of type [javax.sql.DataSource] is defined: expected single matching bean but found 2: mysql_datasource,secure_datasource
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1016)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:904)
at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:815)
at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:743)
以下是我的代码:
@Bean(name="secure_datasource")
public DataSource dataSource(){
try{
ComboPooledDataSource dataSource = new ComboPooledDataSource();
dataSource.setJdbcUrl(environment.getProperty("sc.db.url"));
dataSource.setDriverClass(environment.getProperty("sc.db.driver.class"));
dataSource.setUser(environment.getProperty("sc.db.username"));
dataSource.setPassword(environment.getProperty("sc.db.password"));
dataSource.setIdleConnectionTestPeriod(60);
dataSource.setMaxPoolSize(10);
dataSource.setMaxStatements(7);
dataSource.setMinPoolSize(1);
return dataSource;
}catch(Exception ex){
throw new RuntimeException(ex);
}
}
.................
@Bean(name="mysql_datasource")
public DataSource dataSource(){
try{
ComboPooledDataSource dataSource = new ComboPooledDataSource();
dataSource.setJdbcUrl(environment.getProperty("db.url"));
dataSource.setDriverClass(environment.getProperty("db.driver.class"));
dataSource.setUser(environment.getProperty("db.username"));
dataSource.setPassword(environment.getProperty("db.password")); …如何在spring中验证我的路径变量.我想验证id字段,因为它只有单个字段我不想移动到Pojo
@RestController
public class MyController {
@RequestMapping(value = "/{id}", method = RequestMethod.PUT)
public ResponseEntity method_name(@PathVariable String id) {
/// Some code
}
}
我尝试在路径变量中添加验证,但它仍然无效
@RestController
@Validated
public class MyController {
@RequestMapping(value = "/{id}", method = RequestMethod.PUT)
public ResponseEntity method_name(
@Valid
@Nonnull
@Size(max = 2, min = 1, message = "name should have between 1 and 10 characters")
@PathVariable String id) {
/// Some code
}
}
使用在SQL Server中执行查询的服务时,我的应用程序遇到错误FeignClient.
错误:
线程"pool-10-thread-14"中的异常feign.RetryableException:读取超时执行GET http://127.0.0.1:8876/processoData/search/buscaProcessoPorCliente?cliente=ELEKTRO+-+TRABALHISTA&estado=SP
我的消费者服务:
@FeignClient(url="http://127.0.0.1:8876")
public interface ProcessoConsumer {
@RequestMapping(method = RequestMethod.GET, value = "/processoData/search/buscaProcessoPorCliente?cliente={cliente}&estado={estado}")
public PagedResources<ProcessoDTO> buscaProcessoClienteEstado(@PathVariable("cliente") String cliente, @PathVariable("estado") String estado);
}
我的YML:
server:
port: 8874
endpoints:
restart:
enabled: true
shutdown:
enabled: true
health:
sensitive: false
eureka:
client:
serviceUrl:
defaultZone: ${vcap.services.eureka-service.credentials.uri:http://xxx.xx.xxx.xx:8764}/eureka/
instance:
preferIpAddress: true
ribbon:
eureka:
enabled: true
spring:
application:
name: MyApplication
data:
mongodb:
host: xxx.xx.xxx.xx
port: 27017
uri: mongodb://xxx.xx.xxx.xx/recortesExtrator
repositories.enabled: true
solr:
host: http://xxx.xx.xxx.xx:8983/solr
repositories.enabled: true
有谁知道如何解决这个问题？
谢谢.
我希望我的可审计(@CreatedDate和@LastModifiedDate)MongoDB文档可以使用ZonedDateTime字段.
显然,Spring Data不支持这种类型(请看一下org.springframework.data.auditing.AnnotationAuditingMetadata).
框架版本:Spring Boot 2.0.0和Spring Data MongoDB 2.0.0
java.lang.IllegalArgumentException: Invalid date type for member <MEMBER NAME>!
Supported types are [org.joda.time.DateTime, org.joda.time.LocalDateTime, java.util.Date, java.lang.Long, long].
@Configuration
@EnableMongoAuditing
public class MongoConfiguration {
}
public abstract class BaseDocument {
@CreatedDate
private ZonedDateTime createdDate;
@LastModifiedDate
private ZonedDateTime lastModifiedDate;
}
我也试过为ZonedDateTime它创建一个自定义转换器,但Spring Data没有考虑它.该类DateConvertingAuditableBeanWrapper有一个ConversionService在构造函数方法中配置的JodaTimeConverters,Jsr310Converters和ThreeTenBackPortConverters.
@Component
public class …此问题出现在Spring-Data发行版2中.在最新版本1.13.9(及更早版本)中,它运行正常.
控制器代码:
@RestController
public class HelloController {
@RequestMapping("/")
public String index() {
return "Greetings from Spring Boot!";
}
@RequestMapping(value = "sorttest", method = RequestMethod.GET)
public Page<Integer> getDummy() {
return new PageImpl<>(Collections.singletonList(1), new PageRequest(0, 5, new Sort("asdf")), 1);
}
}
Spring-Data 2风格相同:
Pageable pageable = PageRequest.of(0, 10, new Sort(Sort.Direction.ASC, "asd"));
PageImpl<Integer> page = new PageImpl<Integer>(Lists.newArrayList(1,2,3), pageable, 3);
return page;
组态:
@SpringBootApplication
@EnableWebMvc
@EnableSpringDataWebSupport
public class Application {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
还尝试了简单的Spring应用程序,没有带有Java配置的Spring Boot以及XML配置.结果是一样的:
{
"content": …我构建了一个访问数据库并从中提取数据的 Spring-Boot 应用程序。一切正常，但我想从外部 .properties 文件配置表名。
喜欢：
@Entity
@Table(name = "${fleet.table.name}")
public class Fleet {
...
}
我试图找到一些东西，但我没有。
您可以使用@Value("...")注释访问外部属性。
所以我的问题是：有什么办法可以配置表名？或者我可以更改/拦截休眠发送的查询吗？
解决方案：
好的，hibernate 5 与PhysicalNamingStrategy. 所以我创建了自己的PhysicalNamingStrategy.
@Configuration
public class TableNameConfig{
@Value("${fleet.table.name}")
private String fleetTableName;
@Value("${visits.table.name}")
private String visitsTableName;
@Value("${route.table.name}")
private String routeTableName;
@Bean
public PhysicalNamingStrategyStandardImpl physicalNamingStrategyStandard(){
return new PhysicalNamingImpl();
}
class PhysicalNamingImpl extends PhysicalNamingStrategyStandardImpl {
@Override
public Identifier toPhysicalTableName(Identifier name, JdbcEnvironment context) {
switch (name.getText()) {
case "Fleet":
return new Identifier(fleetTableName, name.isQuoted());
case "Visits":
return new …我应该如何构建我的findBy方法名称,以便我可以实现where子句 -
statusCode != 'Denied'
这是一个选择吗？
findByStatusCodeNotIn(List<String> statusCode);
如果我只想传递一个String而不是一个列表怎么办？
谢谢
为什么 SpringChainedTransactionManager被弃用了？Spring 是否提供任何替代库来支持多个事务管理器？
我的用例：- 我们正在构建一个连接到两个数据源（db1 和 db2）的 Spring Boot 应用程序，它对两个数据库（db1 和 db2）执行插入操作。我们的要求是这样的：插入 -> DB1 -> 成功插入 -> DB2 -> 错误回滚 DB1
目前，我们正在使用ChaninedTransactionManager并且它按预期工作，但我可以看到 lib 已被弃用。那么，只是想确保使用它是否安全，或者 Spring 是否提供了任何我们可以用来替代它的替代库？