我正在使用JPA运行一个简单的查询 - ＆gt; Hibernate - ＆gt; JDBC - ＆gt;甲骨文。
查询基本上是：
# automated loop testing values in range
upper = 0x100
for n in range(upper):
if check(n, second, target):
print(hex(n))
当我在Oracle Level运行它时，我得到：
select * from mstrgenstate where stateshort='TX';
当我使用JPA和Hibernate在Java中运行它时，我得知表中没有记录。我得到的消息（跟踪设置打开）如下所示。实体代码（ Mstrgenstate.java ）是使用 Hibernate 生成的。数据访问代码（ MstrgenstateDAO.java ）正在使用 CrudRepository
为了从数据库中获取数据，是否需要做某些特殊事情？
TIA
更新 我添加到DAO文件中：
STATEID COUNTRYID STA STATEMED STATELONG
---------- ---------- --- --------------- ------------------------------
1 1 TX Texas Texas
和控制器：
public List<Mstrgenstate> findByStateid ( BigDecimal stateid );
我得到了以下结果 - 它有效
List<Mstrgenstate> testme = statedao.findByStateid(new BigDecimal(1));
System.out.println("first test here " + testme.size());
所以我看到的是检索数据的工作正常 整数但是当使用字符时，似乎有某种形式 问题。数据库是Oracle - 在所有的地方都存在一个错误 这个？下面是我尝试使用字符串（TX）
获取时获得的内容
消息我正在接受
2017-07-21 15:46:13.344 DEBUG 10496 --- [nio-8080-exec-1] org.hibernate.SQL : select mstrgensta0_.stateid as stateid1_6_, mstrgensta0_.countryid as countryid2_6_, mstrgensta0_.statelong as statelong3_6_, mstrgensta0_.statemed as statemed4_6_, mstrgensta0_.stateshort as stateshort5_6_ from oraapps.mstrgenstate mstrgensta0_ where mstrgensta0_.stateid=?
2017-07-21 15:46:13.477 TRACE 10496 --- [nio-8080-exec-1] o.h.type.descriptor.sql.BasicBinder : binding parameter [1] as [NUMERIC] - [1]
2017-07-21 15:46:13.487 TRACE 10496 --- [nio-8080-exec-1] o.h.type.descriptor.sql.BasicExtractor : extracted value ([stateid1_6_] : [NUMERIC]) - [1]
2017-07-21 15:46:13.496 TRACE 10496 --- [nio-8080-exec-1] o.h.type.descriptor.sql.BasicExtractor : extracted value ([countryid2_6_] : [NUMERIC]) - [1]
2017-07-21 15:46:13.497 TRACE 10496 --- [nio-8080-exec-1] o.h.type.descriptor.sql.BasicExtractor : extracted value ([statelong3_6_] : [VARCHAR]) - [Texas]
2017-07-21 15:46:13.498 TRACE 10496 --- [nio-8080-exec-1] o.h.type.descriptor.sql.BasicExtractor : extracted value ([statemed4_6_] : [VARCHAR]) - [Texas]
2017-07-21 15:46:13.498 TRACE 10496 --- [nio-8080-exec-1] o.h.type.descriptor.sql.BasicExtractor : extracted value ([stateshort5_6_] : [VARCHAR]) - [TX ]
first test here 1
控制器代码
017-07-21 14:36:42.198 INFO 20212 --- [nio-8080-exec-1] o.h.h.i.QueryTranslatorFactoryInitiator : HHH000397: Using ASTQueryTranslatorFactory
2017-07-21 14:36:42.438 DEBUG 20212 --- [nio-8080-exec-1] org.hibernate.SQL : select mstrgensta0_.stateid as stateid1_6_, mstrgensta0_.countryid as countryid2_6_, mstrgensta0_.statelong as statelong3_6_, mstrgensta0_.statemed as statemed4_6_, mstrgensta0_.stateshort as stateshort5_6_ from oraapps.mstrgenstate mstrgensta0_ where mstrgensta0_.stateshort=?
2017-07-21 14:36:42.531 TRACE 20212 --- [nio-8080-exec-1] o.h.type.descriptor.sql.BasicBinder : binding parameter [1] as [VARCHAR] - [TX]
2017-07-21 14:36:42.557 DEBUG 20212 --- [nio-8080-exec-1] org.hibernate.SQL : select mstrgensta0_.stateid as stateid1_6_, mstrgensta0_.countryid as countryid2_6_, mstrgensta0_.statelong as statelong3_6_, mstrgensta0_.statemed as statemed4_6_, mstrgensta0_.stateshort as stateshort5_6_ from oraapps.mstrgenstate mstrgensta0_ where mstrgensta0_.statelong=?
2017-07-21 14:36:42.557 TRACE 20212 --- [nio-8080-exec-1] o.h.type.descriptor.sql.BasicBinder : binding parameter [1] as [VARCHAR] - [TX]
Fri Jul 21 14:36:42 CDT 2017 => DATA_INPUT_ERROR : => CLASS : CustomerController => EMSG-20008 - finding state id for state name : ->TX<- has failed State passed in TX number of items found 0
ccinfw.messages.DataInputError: Fri Jul 21 14:36:42 CDT 2017 => DATA_INPUT_ERROR : => CLASS : CustomerController => EMSG-20008 - finding state id for state name : ->TX<- has failed State passed in TX number of items found 0
at ccinfw.controller.CustomerController.addCustomer(CustomerController.java:107)
MstrgenstateDAO.java（使用CrudRepository）
@RequestMapping(value = "/add", method = RequestMethod.POST, consumes = "application/json")
public ResponseEntity<Lawncustomer> addCustomer(
@RequestBody CustomerIOPOJO input) throws Exception {
try {
Lawncustomer cust = new Lawncustomer();
cust.setTenantid(input.getTenantid());
cust.setCustomerid(new BigDecimal(200));
cust.setFirstname(input.getFirstname());
cust.setLastname(input.getLastname());
cust.setCellphoneno(input.getCellphoneno());
cust.setEmail(input.getEmail());
cust.setAddress(input.getAddress());
cust.setCity(input.getCity());
if (input.getState() == null
|| input.getState().trim().length() <= 1) {
throw new DataInputError
( " => CLASS : " + this.getClass().getSimpleName()
+ " => EMSG-20000 - invalid state sent in for evaluation - make sure 2-char def is used. Passed in : "
+ input.getState() + " EMail processed " + input.getEmail() );
}
List<Mstrgenstate> statefound;
statefound = statedao.findByStateshort(input.getState());
if (statefound.size() > 1 || statefound.size() < 0 ){
throw new ApplicationError
( " => CLASS : " + this.getClass().getSimpleName()
+ " => EMSG-20012 - invalid number of items found for STATE: ->" + input.getState() + "<- verify DB entries "
+ " State passed in " + input.getState());
}
if (statefound.size() == 0 ) {
statefound = statedao.findByStatelong(input.getState());
if (statefound.size() != 1) {
throw new DataInputError
( " => CLASS : " + this.getClass().getSimpleName()
+ " => EMSG-20008 - finding state id for state name : ->" + input.getState() + "<- has failed "
+ " State passed in " + input.getState() + " number of items found " + statefound.size() );
}
}
cust.setStateid(statefound.get(0).getStateid());
cust.setZipcode(input.getZipcode());
MapFunctionality mapping = new MapFunctionality(input.getAddress(),
input.getCity(), input.getState(), input.getZipcode());
mapping.calcLatLongPositions();
cust.setLoclatitude(mapping.getCalclat());
cust.setLoclongitude(mapping.getCalclon());
customer.save(cust);
return new ResponseEntity<Lawncustomer>(cust, HttpStatus.OK);
} catch (HibernateException e) {
throw new RuntimeError
( " => CLASS : " + this.getClass().getSimpleName()
+ " => EMSG-20010 - finding state id for state name : ->" + input.getState() + "<- has failed "
+ " EMail processed " + input.getEmail());
}
}
Mstrgenstate.java（由Hibernate生成）
package ccinfw.general.dao;
import java.math.BigDecimal;
import java.util.List;
import javax.transaction.Transactional;
import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;
import ccinfw.general.entities.Mstrgenstate;
@Transactional
@Repository
public interface MstrgenstateDAO extends CrudRepository<Mstrgenstate, BigDecimal>{
public List<Mstrgenstate> findByStateshort( String stateshort );
public List<Mstrgenstate> findByStatelong( String statelong );
}
答案 0 :(得分：0)
没关系，我刚刚将列更改为VARCHAR，并且数据库中的一切工作正常。我想hibernate生成程序将我的CHAR（3）注册到VARCHAR。愚蠢的错误 - mods，你可以删除帖子。谢谢！
答案 1 :(得分：0)
你能为你的桌子做一个DESC吗？
我怀疑你的STATESHORT列是CHAR（3）而不是VARCHAR。您的专栏内容不是“TX＆＃39;但是＆＃39; TX＆＃39;所以没有看到这一行。