Error:
Error starting ApplicationContext. To display the auto-configuration report re-run your application with 'debug' enabled.
2017-10-30 11:18:52.721 ERROR 16868 --- [main] o.s.boot.SpringApplication : Application startup failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'jobDetailServiceImpl': Unsatisfied dependency expressed through field 'jobDetailRepository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jobDetailRepository': Invocation of init method failed; nested exception is java.lang.IllegalStateException: Method must not have Pageable *and* Sort parameter. Use sorting capabilities on Pageable instead! Offending method: public abstract org.springframework.data.domain.Page com.hujiang.career.bank.data.analysis.repository.JobDetailRepository.findAll(org.springframework.data.domain.Pageable,org.springframework.data.domain.Sort)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:588) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:366) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1264) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:761) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867) ~[spring-context-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543) ~[spring-context-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:122) ~[spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:693) [spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:360) [spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:303) [spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1118) [spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1107) [spring-boot-1.5.8.RELEASE.jar:1.5.8.RELEASE]
at com.hujiang.career.bank.data.analysis.DataAnalysisApplication.main(DataAnalysisApplication.java:13) [classes/:na]
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'jobDetailRepository': Invocation of init method failed; nested exception is java.lang.IllegalStateException: Method must not have Pageable *and* Sort parameter. Use sorting capabilities on Pageable instead! Offending method: public abstract org.springframework.data.domain.Page com.hujiang.career.bank.data.analysis.repository.JobDetailRepository.findAll(org.springframework.data.domain.Pageable,org.springframework.data.domain.Sort)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1628) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:202) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:208) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1138) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1066) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:585) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
... 19 common frames omitted
Caused by: java.lang.IllegalStateException: Method must not have Pageable *and* Sort parameter. Use sorting capabilities on Pageable instead! Offending method: public abstract org.springframework.data.domain.Page com.hujiang.career.bank.data.analysis.repository.JobDetailRepository.findAll(org.springframework.data.domain.Pageable,org.springframework.data.domain.Sort)
at org.springframework.data.repository.query.QueryMethod.<init>(QueryMethod.java:87) ~[spring-data-commons-1.13.8.RELEASE.jar:na]
at org.springframework.data.jpa.repository.query.JpaQueryMethod.<init>(JpaQueryMethod.java:89) ~[spring-data-jpa-1.11.8.RELEASE.jar:na]
at org.springframework.data.jpa.repository.query.JpaQueryLookupStrategy$AbstractQueryLookupStrategy.resolveQuery(JpaQueryLookupStrategy.java:77) ~[spring-data-jpa-1.11.8.RELEASE.jar:na]
at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.<init>(RepositoryFactorySupport.java:436) ~[spring-data-commons-1.13.8.RELEASE.jar:na]
at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:221) ~[spring-data-commons-1.13.8.RELEASE.jar:na]
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.initAndReturn(RepositoryFactoryBeanSupport.java:277) ~[spring-data-commons-1.13.8.RELEASE.jar:na]
at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:263) ~[spring-data-commons-1.13.8.RELEASE.jar:na]
at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:101) ~[spring-data-jpa-1.11.8.RELEASE.jar:na]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1687) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1624) ~[spring-beans-4.3.12.RELEASE.jar:4.3.12.RELEASE]
... 29 common frames omitted
解決辦法：
將
@GetMapping("/list")
public Page<JobDetail> list(@PageableDefault(size = 5) Pageable pageable) {
return jobDetailService.list(pageable);
}
@Autowired private JobDetailRepository jobDetailRepository; @Override public Page<JobDetail> list(Pageable pageable) { return jobDetailRepository.findAll(pageable,new Sort(Sort.Direction.DESC,"id")); }
改成：
@GetMapping("/list")
public Page<JobDetail> list(@PageableDefault(size = 5, sort = "id", direction = Sort.Direction.DESC) Pageable pageable) {
return jobDetailService.list(pageable);
}
@Autowired private JobDetailRepository jobDetailRepository; @Override public Page<JobDetail> list(Pageable pageable) { return jobDetailRepository.findAll(pageable); }
原因：
A Pageable already carries a Sort. Why would you want to hand in an additional one? The other point is, that the method can't have the same return type.
A Pageable usually results in a Page returned, which doesn't work if only a Sort is given. Yes, there's a case for returning a List or the like for both but I'd argue that giving up the constraints opens up a source for undetected misdeclarations.
So I'd recommend to simply declare two query methods, one taking a Pageeable, one taking a Sort.
https://jira.spring.io/browse/DATAJPA-1138
Pageable 是Spring Data庫中定義的一個接口，該接口是所有分頁相關信息的一個抽象，通過該接口，我們可以得到和分頁相關所有信息（例如pageNumber、pageSize等）。
Pageable定義了很多方法，但其核心的信息只有兩個：一是分頁的信息（page、size），二是排序的信息。
在springmvc的請求中只需要在方法的參數中直接定義一個pageable類型的參數，當Spring發現這個參數時，Spring會自動的根據request的參數來組裝該pageable對象，
Spring支持的request參數如下：
page，第幾頁，從0開始，默認為第0頁 size，每一頁的大小，默認為20 sort，排序相關的信息，以property,property(,ASC|DESC)的方式組織，例如sort=firstname&sort=lastname,desc表示在按firstname正序排列基礎上按lastname倒序排列。
這樣，我們就可以通過url的參數來進行多樣化、個性化的查詢。
Spring data提供了@PageableDefault幫助我們個性化的設置pageable的默認配置。
例如@PageableDefault(value = 15, sort = { "id" }, direction = Sort.Direction.DESC)表示默認情況下我們按照id倒序排列，每一頁的大小為15。
@ResponseBody @RequestMapping(value = "list", method=RequestMethod.GET) public Page<blog> listByPageable(@PageableDefault(value = 15, sort = { "id" }, direction = Sort.Direction.DESC) Pageable pageable) { return blogRepository.findAll(pageable); }
http://blog.csdn.net/zsg88/article/details/66025560
今天給大家介紹一下SpringBoot中JPA的一些常用操作，例如：增刪改查、分頁、排序、事務操作等功能。
下面先來介紹一下JPA中一些常用的查詢操作:
//And --- 等價於 SQL 中的 and 關鍵字，比如 findByHeightAndSex(int height,char sex)； public List<User> findByHeightAndSex(int height,char sex); // Or --- 等價於 SQL 中的 or 關鍵字，比如 findByHeightOrSex(int height,char sex)； public List<User> findByHeightOrSex(int height,char sex); //Between --- 等價於 SQL 中的 between 關鍵字，比如 findByHeightBetween(int min, int max)； public List<User> findByHeightBetween(int min,int max); //LessThan --- 等價於 SQL 中的 "<"，比如 findByHeightLessThan(int max)； public List<User> findByHeightLessThan(int max); //GreaterThan --- 等價於 SQL 中的">"，比如 findByHeightGreaterThan(int min)； public List<User> findByHeightGreaterThan(int min); //IsNull --- 等價於 SQL 中的 "is null"，比如 findByNameIsNull()； public List<User> findByNameIsNull(); //IsNotNull --- 等價於 SQL 中的 "is not null"，比如 findByNameIsNotNull()； public List<User> findByNameIsNotNull(); //NotNull --- 與 IsNotNull 等價； public List<User> findByNameNotNull(); //Like --- 等價於 SQL 中的 "like"，比如 findByNameLike(String name); public List<User> findByNameLike(String name); //NotLike --- 等價於 SQL 中的 "not like"，比如 findByNameNotLike(String name)； public List<User> findByNameNotLike(String name); //OrderBy --- 等價於 SQL 中的 "order by"，比如 findByNameNotNullOrderByHeightAsc()； public List<User>findByNameNotNullOrderByHeightAsc(); //Not --- 等價於 SQL 中的 "！ ="，比如 findByNameNot(String name)； public List<User> findByNameNot(String name); //In --- 等價於 SQL 中的 "in"，比如 findByNameIN(String name); public List<User> findByNameIn(String name); //NotIn --- 等價於 SQL 中的 "not in"，比如 findByNameNotIN(String name); public List<User> findByNameNotIn(String name);
JPA中的風格就是這樣，每個方法其實都是一條SQl命令，通過一些關鍵字就可以實現SQL中類似於like in等等之類的命令了。
最重要的是我們再開發的過程中，只需要編寫dao中一個個方法，不需要我們編寫dao的實現類，這樣就可以大大的挺高代碼的復用率、提高我們的開發效率。
說道這里不免會有人會問，那一些比較復雜的關聯查詢要怎么實現呢，JPA的處理方法是：利用原生的SQl命令來實現那些復雜的關聯查詢，下面就來看下案例。
//利用原生的SQL進行查詢操作 @Query(value = "select o.* from orders o ,user u where o.uid=u.id and u.name=?1", nativeQuery = true) @Modifying public List<Order> findOrderByName(String name); //利用原生的SQL進行刪除操作 @Query(value = "delete from orders where id=?1 ", nativeQuery = true) @Modifying public void deleteOrderById(int id); //利用原生的SQL進行刪除操作 @Query(value = "delete from orders where uid=?1 ", nativeQuery = true) @Modifying public void deleteOrderByUId(int uid); //利用原生的SQL進行修改操作 @Query(value = "update orders set name=?1 where id=?2 ", nativeQuery = true) @Modifying public void updateOrderName(String name,int id); //利用原生的SQL進行插入操作 @Query(value = "insert into orders(name,uid) value(?1,?2)", nativeQuery = true) @Modifying public void insertOrder(String name,int uid);
上面的案例中給出了，利用JPA實現原生的SQL操作，可以很方便的進行數據庫表的操作。
所以如果是那種查詢語句不是非常復雜，對查詢時間要求不是特別苛刻的項目，完全可以采用JPA來進行項目的開發。
下面接着來介紹JPA是怎么實現分頁的效果，其實JPA脫胎於hibernate，所以本身就對分頁功能有很好的支持。下面給出具體例子：
//實現分頁功能 Page<User> findByNameNot(String name,Pageable pageable);
@RequestMapping(value = "/params", method= RequestMethod.GET) @ResponseBody public String getEntryByParams(@RequestParam(value = "name", defaultValue = "林志強") String name, @RequestParam(value = "page", defaultValue = "0") Integer page, @RequestParam(value = "size", defaultValue = "15") Integer size) { Sort sort = new Sort(Sort.Direction.DESC, "id"); Pageable pageable = new PageRequest(page, size, sort); Page<User> pages=userDao.findByNameNot(name,pageable); Iterator<User> it=pages.iterator(); while(it.hasNext()){ System.out.println("value:"+((User)it.next()).getId()); } return "success...login...."; }
上面的代碼一個是在dao層中的，一個是在controller中的。
dao層中添加一個返回值為Page，參數值為Pageable。controller層中通過實例化Pageable這個類，然后調用dao層這個分頁方法。
通過這些步驟就可以輕輕松松的實現分頁的效果啦，看起來是不是特別方便。
最后在給大家介紹一下JPA是如何實現事務操作的。其實因為SpringBoot中已經對事務做了很好的封裝了，使用起來特別方便。下面看一下案例：
@RequestMapping("/saveOrder")
@ResponseBody
@Transactional()
public String saveOrder(){
Order o1=new Order("11",2);
Order o2=new Order("22",2);
Order o3=new Order("33",2);
Order o4=new Order("44",2);
orderDao.save(o1);
orderDao.save(o2);
orderDao.save(o3);
orderDao.save(o4);
return "successfull....saveOrder......";
}
只要在方法的上面加上@Transaction 這個注解就可以輕輕松松的實現事務的操作了，是不是特別方便啊。
不過這里有幾點需要注意的是：
1.這個注解實現的事務管理器是默認的，如果不想要默認是事務管理器，可以自己進行添加，我這里就不多介紹了。
2.事務的隔離級別也是可以自己設置的，具體請看這篇博客 點擊打開鏈接
3.事務的傳播行為也是可以自己設置的，具體請看這篇博客點擊打開鏈接
到此到此關於JPA的一些常規方法就介紹完了，謝謝大家的閱讀。
http://blog.csdn.net/linzhiqiang0316/article/details/52639265