[英]Unable to fetch all where userRole = “ManagerRole” from users table
这是我的实体类。
@NamedQueries({ @NamedQuery(name = UsersEntity.NAMED_QUERY_SELECT_ALL_BY_MANAGER_ROLE,
query = "SELECT e FROM " + UsersEntity.ENTITY_NAME + " e WHERE e." +
UsersEntity.FIELD_NAME_USER_ROLE + " = '" +
UsersVO.USER_ROLE + "'") })
@Column(name = "USER_ROLE", nullable = false, length = 30)
private String userRole;
public static final String FIELD_NAME_USER_ROLE = "userRole";
这是我执行查询的Java类
@GET
@Path("/userrole")
@Produces({ MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON })
public UsersListVO getUsers(@QueryParam("userRole") String userRole) {
// public UsersListVO getUsers(){
System.out.println(">>>>>here");
UsersListVO usersListVO = new UsersListVO();
try {
List<UsersEntity> usersEntityList = em.createNamedQuery(UsersEntity.NAMED_QUERY_SELECT_ALL_BY_MANAGER_ROLE, UsersEntity.class).setParameter(UsersEntity.FIELD_NAME_USER_ROLE, userRole).getResultList();
测试用例是:
@Test
public void testGetUsers() {
System.out.println("Start test ");
UsersListVO usersListVO = baseWebTarget.path("userrole").queryParam("userRole", "AppSystemManagerUserRole").request(MediaType.APPLICATION_JSON).get(UsersListVO.class);
if (usersListVO.getStatusType().equals(StatusTypeVO.FAILURE)) {
Assert.fail(usersListVO.getMessage());
} else {
System.out.println(usersListVO.getMessage());
}
}
我想从用户表中获取所有角色为managerRole的经理,但是在执行测试用例到我的jdeveloper时出错。 我得到的错误是
java.lang.AssertionError:您试图使用查询字符串SELECT e FROM UsersEntity e WHERE e.userRole ='AppSystemManagerUserRole'中不存在的userRole名称设置参数值。
错误
java.lang.AssertionError: You have attempted to set a parameter value using a name of userRole that does not exist in the query string SELECT e FROM UsersEntity e WHERE e.userRole = 'AppSystemManagerUserRole'
表示您正在尝试设置参数在您的命名查询中不存在。
您的命名查询:
query = "SELECT e FROM " + UsersEntity.ENTITY_NAME + " e WHERE e." +
UsersEntity.FIELD_NAME_USER_ROLE + " = '" + UsersVO.USER_ROLE + "'"
字符串连接后导致:
query = "SELECT e FROM UsersEntity e WHERE e.userRole = 'AppSystemManagerUserRole'"
如您所见,没有可以设置的命名参数。 当您尝试调用setParameter(UsersEntity.FIELD_NAME_USER_ROLE, userRole)
它引发了异常。
您需要在命名查询中引入以下命名参数,以便稍后在代码中进行设置。
query = "SELECT e FROM " + UsersEntity.ENTITY_NAME + " e WHERE e." +
UsersEntity.FIELD_NAME_USER_ROLE + " = :" + UsersEntity.FIELD_NAME_USER_ROLE
会导致
query = "SELECT e FROM UsersEntity e WHERE e.userRole = :userRole"
这样,您应该可以设置参数并且可以正常工作。
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