struts2-s2hibernate

NullPointerException while trying to add an orm layer using hibernate

由 可紊 提交于 2021-02-10 15:17:47
问题 Well,I have been trying to add an orm layer for past 3 weeks and i havent been able to do so.I was trying to learn from the tutorial.I have done whatever the tutorial says .Here is the code Student.java package com.codinghazard.actions; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.Id; import javax.persistence.Table; @Entity @Table(name="student") public class Student { @Id @GeneratedValue private int id;

NullPointerException while trying to add an orm layer using hibernate

由 给你一囗甜甜゛ 提交于 2021-02-10 15:14:00
问题 Well,I have been trying to add an orm layer for past 3 weeks and i havent been able to do so.I was trying to learn from the tutorial.I have done whatever the tutorial says .Here is the code Student.java package com.codinghazard.actions; import javax.persistence.Column; import javax.persistence.Entity; import javax.persistence.GeneratedValue; import javax.persistence.Id; import javax.persistence.Table; @Entity @Table(name="student") public class Student { @Id @GeneratedValue private int id;

HIbernate struts2 session null pointer exception

由 ⅰ亾dé卋堺 提交于 2020-01-07 09:05:55
问题 I am creating one simple login example using struts2 and hibernate. For doing this I am creating one session variable with @SessionTarget annotation. But when I am trying to use this session variable then I am getting null pointer exception. @SessionTarget Session session; public void userLogin(String userName, String password) { try { String hql = "select user_privilege from user_details log where log.userName=:userName and log.password=:passw"; Query query = session.createQuery(hql); //

Hiberate with Struts2 - Use Full Hibernate Plugin or another method to close Sessions?

由 ╄→尐↘猪︶ㄣ 提交于 2019-12-18 09:37:23
问题 I'm using Struts 2.2.1.1 and Hibernate 3.6.2.Final. I'm also using C3P0 for my connection pool which is running on Tomcat 7.0.11. I'm having issues where my Hibernate Sessions are not being closed and I'm quickly exceeding the maximum number of open connections as configured in the "hibernate.c3p0.max_size" property. I think it is because my Hibernate Sessions are opened but never closed. I'm opening Sessions from a SessionFactory that is stored in the ServletContext. I tried closing the

Struts2 + Full Hibernate Plugin --> Session is Closed?

由 随声附和 提交于 2019-12-09 01:59:27
问题 Related to this question (where the answer doesn't really get to the point): Hiberate with Struts2 - Use Full Hibernate Plugin or another method to close Sessions? I have the same setup: Struts 2.2.3 and the struts2-fullhibernatecore-plugin-2.2.2-GA . I have none of the defaults changed for Struts2 and for the Plugin. I'm using MySQL, no additional connection pooling, and nothing fancy in general. I use the following code in my Action: FeedGroup persistent = null; List<FeedGroup> list =

How to apply Spring security on struts2

由 僤鯓⒐⒋嵵緔 提交于 2019-12-06 04:23:23
问题 I have read various tutorials and forums but have not found a working example of combination of Spring security and struts2 to investigate the coding. Most of the current examples are using the predefined username and passwords in the XML file but not connected to database. Sample 1 Sample 2 Sample 3 Please let me know if you know of any example or tutorial. 回答1: You should probably start with these tutorials: Spring Security Part 1 – Simple Login application with database Spring Security

How to apply Spring security on struts2

由 核能气质少年 提交于 2019-12-04 10:09:12
I have read various tutorials and forums but have not found a working example of combination of Spring security and struts2 to investigate the coding. Most of the current examples are using the predefined username and passwords in the XML file but not connected to database. Sample 1 Sample 2 Sample 3 Please let me know if you know of any example or tutorial. You should probably start with these tutorials: Spring Security Part 1 – Simple Login application with database Spring Security Part 2 – Password Encryption, Customize 404 and 403 error page 来源： https://stackoverflow.com/questions/15671973

Struts2 + Full Hibernate Plugin --> Session is Closed?

由 ♀尐吖头ヾ 提交于 2019-12-01 01:54:47
Related to this question (where the answer doesn't really get to the point): Hiberate with Struts2 - Use Full Hibernate Plugin or another method to close Sessions? I have the same setup: Struts 2.2.3 and the struts2-fullhibernatecore-plugin-2.2.2-GA . I have none of the defaults changed for Struts2 and for the Plugin. I'm using MySQL, no additional connection pooling, and nothing fancy in general. I use the following code in my Action: FeedGroup persistent = null; List<FeedGroup> list = objectList = (List<FeedGroup>) session.createCriteria(FeedGroup.class) .setResultTransformer(Criteria
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