代码
package com.springboot.in.action.dao
import java.util.List
import com.springboot.in.action.entity.User
import org.springframework.data.jpa.repository.Query
import org.springframework.data.repository.CrudRepository
import scala.language.implicitConversions
trait UserDao extends CrudRepository[User, Integer] {
def findAll(): List[User] // JavaConversions
def save(u: User): User
def findOne(id: Integer): User
@Query(value = "select * from `user` where `username` = 1? limit 1", nativeQuery = true)
def findByUsername(username: String): User
}
报错日志
Caused by: org.springframework.dao.InvalidDataAccessResourceUsageException: could not extract ResultSet; SQL [n/a]; nested exception is org.hibernate.exception.SQLGrammarException: could not extract ResultSet
at org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:261)
at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:244)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:488)
at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:59)
at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:213)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:147)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:133)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
at com.sun.proxy.$Proxy97.findByUsername(Unknown Source)
at com.springboot.in.action.service.LightSwordUserDetailService.loadUserByUsername(LightSwordUserDetailService.scala:25)
at org.springframework.security.authentication.dao.DaoAuthenticationProvider.retrieveUser(DaoAuthenticationProvider.java:114)
... 54 common frames omitted
Caused by: org.hibernate.exception.SQLGrammarException: could not extract ResultSet
at org.hibernate.exception.internal.SQLExceptionTypeDelegate.convert(SQLExceptionTypeDelegate.java:63)
at org.hibernate.exception.internal.StandardSQLExceptionConverter.convert(StandardSQLExceptionConverter.java:42)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:109)
at org.hibernate.engine.jdbc.spi.SqlExceptionHelper.convert(SqlExceptionHelper.java:95)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:79)
at org.hibernate.loader.Loader.getResultSet(Loader.java:2117)
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1900)
at org.hibernate.loader.Loader.executeQueryStatement(Loader.java:1876)
at org.hibernate.loader.Loader.doQuery(Loader.java:919)
at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:336)
at org.hibernate.loader.Loader.doList(Loader.java:2617)
at org.hibernate.loader.Loader.doList(Loader.java:2600)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2429)
at org.hibernate.loader.Loader.list(Loader.java:2424)
at org.hibernate.loader.custom.CustomLoader.list(CustomLoader.java:336)
at org.hibernate.internal.SessionImpl.listCustomQuery(SessionImpl.java:1967)
at org.hibernate.internal.AbstractSessionImpl.list(AbstractSessionImpl.java:322)
at org.hibernate.internal.SQLQueryImpl.list(SQLQueryImpl.java:125)
at org.hibernate.jpa.internal.QueryImpl.list(QueryImpl.java:606)
at org.hibernate.jpa.internal.QueryImpl.getSingleResult(QueryImpl.java:529)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
.....
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''jack'' at line 1
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:422)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
at com.mysql.jdbc.Util.getInstance(Util.java:408)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:943)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3973)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3909)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2527)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2680)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2501)
at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1858)
at com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1966)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.apache.tomcat.jdbc.pool.StatementFacade$StatementProxy.invoke(StatementFacade.java:138)
at com.sun.proxy.$Proxy100.executeQuery(Unknown Source)
at org.hibernate.engine.jdbc.internal.ResultSetReturnImpl.extract(ResultSetReturnImpl.java:70)
... 98 common frames omitted
sql语法手误。1?这地方写错了,应该是?1。这在敲代码的时候,手速一旦稍有不慎,就会导致前后顺序颠倒,而导致输入错误。这个虽然说是“低级错误”,但是错误搞起来,确实有时候很难想到这个你从来不会认为出错的地方。
@Query(value = "select * from `user` where `username` = 1? limit 1", nativeQuery = true)
def findByUsername(username: String): User
@Query(value = "select * from `user` where `username` = ?1 limit 1", nativeQuery = true)
def findByUsername(username: String): User
日志打出来的ROLE是USER,代码里调用的是@PreAuthorize("hasRole('USER')"),为什么权限却是不对?
后台打印日志:
username is jack, USER
LoginFilter:{
"accountNonExpired":true,
"accountNonLocked":true,
"authorities":[{
"authority":"USER"
}],
"credentialsNonExpired":true,
"enabled":true,
"username":"jack"
}
调用代码:
@RestController
@RequestMapping(Array("/httpapi"))
class HttpApiController @Autowired()(
val HttpSuiteDao: HttpSuiteDao,
val HttpApiDao: HttpApiDao,
val HttpReportDao: HttpReportDao) {
@PreAuthorize("hasRole('USER')")
@RequestMapping(value = {
Array("", "/")
}, method = Array(RequestMethod.GET))
def list(model: Model) = {
model.addAttribute("httpapis", HttpApiDao.findAll())
new ModelAndView("/httpapi/list")
}
....
}
数据库存的是USER:
package com.springboot.in.action.service
import javax.annotation.PostConstruct
import com.springboot.in.action.dao.{RoleDao, UserDao, UserRoleDao}
import com.springboot.in.action.entity.{Role, User, UserRole}
import org.springframework.beans.factory.annotation.Autowired
import org.springframework.stereotype.Service
/**
* Created by jack on 2017/4/29.
* 初始化测试数据
*/
//@Service // 需要初始化数据时,打开注释即可。
class DataInit @Autowired()(val userDao: UserDao,
val userRoleDao: UserRoleDao,
val roleDao: RoleDao) {
@PostConstruct def dataInit(): Unit = {
val admin = new User
val jack = new User
admin.username = "admin"
admin.password = "admin"
jack.username = "jack"
jack.password = "123456"
userDao.save(admin)
userDao.save(jack)
val adminRole = new Role
val userRole = new Role
adminRole.role = "ADMIN"
userRole.role = "USER"
roleDao.save(adminRole)
roleDao.save(userRole)
val userRoleAdminRecord1 = new UserRole
userRoleAdminRecord1.userId = admin.id
userRoleAdminRecord1.roleId = adminRole.id
userRoleDao.save(userRoleAdminRecord1)
val userRoleAdminRecord2 = new UserRole
userRoleAdminRecord2.userId = admin.id
userRoleAdminRecord2.roleId = userRole.id
userRoleDao.save(userRoleAdminRecord2)
val userRoleJackRecord = new UserRole
userRoleJackRecord.userId = jack.id
userRoleJackRecord.roleId = userRole.id
userRoleDao.save(userRoleJackRecord)
}
}
Spring Security默认前缀ROLE_问题。这个应该是框架的一个小缺陷。总感觉这样的一个潜规则在这里有点不大优雅。
数据库里面存的role角色要加上默认前缀:ROLE_
adminRole.role = "ROLE_ADMIN"
userRole.role = "ROLE_USER"
这样改完之后,代码调用的地方保持不变,数据库里面角色必须统一有ROLE_前缀。而我们看到的后台打印的日志内容也是数据库的信息:
username is jack, ROLE_USER
LoginFilter:{
"accountNonExpired":true,
"accountNonLocked":true,
"authorities":[{
"authority":"ROLE_USER"
}],
"credentialsNonExpired":true,
"enabled":true,
"username":"jack"
}
这个小坑,估计很多初次学习使用Security框架的人都会踩到。所以,记个问题,以供参考。