獲取的URL多​​變量JSON

Question

我想在URL中檢索多個變量，這樣我就可以將查詢發送到數據庫，以選擇一個特定的對象，但它似乎拿起的第一目標和其他均爲空。

@RequestMapping(value = "getGroup/{Name}/{StartDate}/{EndDate}/{Status_GroupID}", method = RequestMethod.GET) 
public @ResponseBody List<GroupsDetails> getGroupList(
     @PathVariable String Name, String StartDate, String EndDate, 
     Integer Status_GroupID) { 

    return musicStoreService.getGroupList(Name, StartDate, EndDate, Status_GroupID); 
} 

我recieving錯誤：

Hibernate: select groupsdeta0_.Status_GroupID as Status1_1_, groupsdeta0_.GroupsID as GroupsID1_,  groupsdeta0_.EndDate as EndDate1_, groupsdeta0_.Name as Name1_, groupsdeta0_.StartDate as StartDate1_ from Groups groupsdeta0_ where groupsdeta0_.Name=Gamma and (groupsdeta0_.StartDate is null) and (groupsdeta0_.EndDate is null) and (groupsdeta0_.Status_GroupID is null) 
Sep 12, 2014 2:41:40 PM org.apache.catalina.core.StandardWrapperValve invoke 
SEVERE: Servlet.service() for servlet [SpringDispatcher] in context with path [/ATS] threw exception [Request processing failed; nested exception is org.hibernate.exception.SQLGrammarException: could not execute query] with root cause 
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown column 'Gamma' in 'where clause' 

表被命名組，它有行：名稱，開始日期，結束日期，Status_GroupID和GroupsID

更新：

我我試圖通過給出行的詳細信息來檢索主鍵，但它不起作用。

@Override 
public List<GroupsDetails> getGroupList(String Name, String StartDate, String EndDate, Integer Status_GroupID) { 
    SessionFactory sessionFactory=HibernateSessionManager.getSessionFactory(); 
    Session session=sessionFactory.getCurrentSession(); 
    Transaction transaction=session.beginTransaction(); 
    try{ 
    transaction.begin(); 
    @SuppressWarnings("unchecked") 
    List<GroupsDetails> groupList=session.createSQLQuery("FROM Groups WHERE Name=" + Name + " AND StartDate=" + StartDate + " AND EndDate=" + EndDate + " AND Status_GroupID=" + Status_GroupID).list(); 
    return groupList; 
    }finally{ 
    session.close(); 
    } 

}

但它拋出異常是嚴重的語法，甚至儘管我看不到在語法上的錯誤。 錯誤是：

Hibernate: FROM Groups WHERE Name=Gamma AND StartDate=01-06-2014 AND EndDate=01-09-2014 AND Status_GroupID=1 
Sep 12, 2014 3:35:51 PM org.apache.catalina.core.StandardWrapperValve invoke 
SEVERE: Servlet.service() for servlet [SpringDispatcher] in context with path [/ATS] threw exception [Request processing failed; nested exception is org.hibernate.exception.SQLGrammarException: could not execute query] with root cause 
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 'FROM Groups WHERE Name=Gamma AND StartDate=01-06-2014 AND EndDate=01-09-2014 AND' at line 1 

Answer 1

按照錯誤的詳細信息：

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 
'FROM Groups WHERE Name=Gamma AND StartDate=01-06-2014 AND EndDate=01-09-2014 AND' at line 1 

它清楚地表明，你缺少的報價，如：Name=Gamma應該Name='Gamma'

另外，您可以通過使用Parameters爲創建Query例如：

query = sess.createSQLQuery("SELECT * FROM Groups 
     WHERE NAME=:name AND StartDate=:startDate AND EndDate=:endDate 
     AND Status_GroupID=:status_GroupID").addEntity(Groups.class); 

    query.setString("name", name); 
    query.setDate("startDate", StartDate); 
    query.setString("endDate", EndDate); 
    query.setString("status_GroupID", Status_GroupID); 


List<GroupsDetails> groupList = query.list(); 

Answer 2

你需要有所有參數的@PathVariable盈。像

public @ResponseBody List<GroupsDetails> getGroupList(
     @PathVariable String Name, @PathVariable String StartDate, @PathVariable String EndDate, 
     @PathVariable Integer Status_GroupID)