Question

我的网络应用程序存在问题：在管理bean中我有：

 private boolean isUserInDB() {
    List users = userFacade.findByLogin(registerLog);
    if(users.isEmpty())
        return false;
    return true;
}

当这个方法开始时，我有这个例外（可能来自userFacade）：

javax.el.ELException: javax.ejb.EJBException:The bean encountered a non-application exception; 
nested exception is: <openjpa-2.2.0-r422266:1244990 fatal general error> org.apache.openjpa.persistence.PersistenceException:
user lacks privilege or object not found: USER {SELECT t0.id_user, t0.login, t0.password FROM USER t0 WHERE (t0.login = ?)} [code=-5501, state=42501] 
FailedObject: SELECT u FROM User u WHERE u.login = :login [java.lang.String]

viewId=/pages/register.xhtml
location=/home/jakub/Projekty/Collv2/build/web/pages/register.xhtml
phaseId=INVOKE_APPLICATION(5)



Caused by:
org.apache.openjpa.lib.jdbc.ReportingSQLException - user lacks privilege or object not found: USER {SELECT t0.id_user, t0.login, t0.password FROM USER t0 WHERE (t0.login = ?)} [code=-5501, state=42501]
at org.apache.openjpa.lib.jdbc.LoggingConnectionDecorator.wrap(LoggingConnectionDecorator.java:247)


or


Caused by:
org.apache.openjpa.lib.jdbc.ReportingSQLException - type not found or user lacks       
privilege: TEXT {stmnt 1932110061 CREATE TABLE COURSE (id_course SMALLINT NOT NULL,
code VARCHAR(255), description TEXT, name VARCHAR(255), realization INTEGER, version 
SMALLINT, PRIMARY KEY (id_course)) ENGINE = innodb} [code=-5509, state=42509]



/pages/register.xhtml at line 26 and column 104 action="#{registerController.register}"

Userclass和UserFacade在Netbeans中自动生成（“来自数据库的实体类......”和“来自实体类的会话Bean ......”：

你能否帮助我强调“用户缺乏特权”是什么意思？

修改

问题出在这里：

public List<User> findByLogin(String login){
    Query q = em.createNamedQuery("User.findByLogin").setParameter("login", login);
    List list = q.getResultList();
    return list;
}

创建查询时抛出异常

Answer 1

用于执行语句的用户没有足够的权限来创建表。

正如@duffymo在评论中提到的那样，你需要granted适当的特权。根据我的经验，为应用程序（技术）用户提供这些权限并不是一个好主意。

使用未用作技术应用程序用户的数据库管理员创建数据库模式。

Answer 2

问题不在于数据库，我必须更改我的JPA配置：

从

获取EntityManager

@PersistenceContext(unitName = "CollDocPU")
private EntityManager em;

我必须更改我的persistance.xml，将事务类型更改为“JTA”并添加：

<jta-data-source>java:openejb/Resource/myDatabase</jta-data-source>
<non-jta-data-source>java:openejb/Resource/myDatabaseUnmanaged</non-jta-data-source>

之后，我必须在我的服务器配置中声明资源：在[tomee安装文件夹] /conf/tomee.xml文件中：

<?xml version="1.0" encoding="UTF-8"?>
 <tomee>
  <Resource id="myDatabase" type="DataSource">
   JdbcDriver com.mysql.jdbc.Driver
   JdbcUrl jdbc:mysql://localhost:11080/jkitaj?zeroDateTimeBehavior=convertToNull
   UserName jkitaj
   Password pass,
 </Resource>

 <Resource id="myDatabaseUnmanaged" type="DataSource">
   JdbcDriver com.mysql.jdbc.Driver
   JdbcUrl jdbc:mysql://localhost:11080/jkitaj?zeroDateTimeBehavior=convertToNull
   UserName jkitaj
   Password pass,
   JtaManaged false
 </Resource>
</tomee>

看那里：

http://openejb.979440.n4.nabble.com/org-apache-openjpa-lib-jdbc-ReportingSQLException-type-not-found-or-user-lacks-privilege-td4665124.html

http://mobiarch.wordpress.com/2012/12/07/configuring-a-mysql-data-source-in-tomee/

什么意思“用户缺乏特权”？

2 个答案: