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the performance of concurrent execution of database transactions and the fewer operations you can handle.Although the JDBC specification defines the above support behavior for transactions, each JDBC driver may have a different degree of support for the transaction by the database vendor.For performance reasons we generally set the transaction_read_committed.With spring, we don't have to deal with getting connections, closing connections, committing
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Used in the project as: in the entity class, use @Entity , @Table , @Id and @Column other annotations.
The sample code is as follows:
import javax.persistence.*;import javax.persistence.Id;@Entity@Table(name = "t_user")//数据库中表名public class UserEO { @Id @Column(name = "USER_ID")//数据库中字段名 private String userId; @Column(name = "USER_NAME") private String userName; }
The jar package structure looks like this:
What is 2.
relevant bean declaration to Applicationcontext.xml. Let spring help new out of the required database connections and datasource. The address of the MongoDB server is passed into the MONGO bean. Mongotemplate uses template mode to encapsulate MongoDB data object operations, which is the core class. A few parameters a database name a default collection name, compare understood.
As a minimalist application, it is sufficient that applicationc
", method = Requestmethod.post) @ResponseBody//This note indicates that the return value skips the View Processing section and writes directly to the HTTP response body in public user login (user user) { System.out.println ("User:" +user.getname () + "Request Login"); User U = Loginservice.findbyname (User.getname ()), if (u==null) {u=new user (); U.setname ("");} return u;} @RequestMapping ("/loginsuccess.do") Public String Start (HttpServletRequest request) {return loginsuccess;}} In
I. Integration of spring and STRUTS2 1.1, integration steps1.2. Configure Web. xml1.3. Configure Spring configuration file Applicationcontext.xml1.4. Configuring the Struts configuration file1.5. Action inherits Actionsupport classTwo, spring and
Summary of SSI (Struts2, Spring, iBatis) framework integration, struts2ibatis
MVC is no stranger to us. It originated from a software design pattern for the smalltalk language in 1980s and is now widely used. In recent years, with the prevalence of java, MVC's low coupling, high reusability, maintainability, software engineering manageability and many other advantages have made it very popular on the java p
Spring provides good support for Ibatis through DAO mode. The Sqlmapclient object is the primary object in Ibatis, and we can configure it to let Spring manage the creation of Sqlmapclient objects.Like Hibernate, Spring provides a Sqlmapclientdaosupport object, and our DAO can inherit this class and manipulate the data
[It168 technical documents] http://tech.it168.com/j/2007-08-02/200708022255218.shtml
This articleArticleThis is a summary after I read Xia Xin's spring guide again. I am most familiar with Struts, but I do not have much practical experience with spring and hibernate. So although this article focuses on the integration
On spring transaction management Let's think about how we do data manipulation in hibernate when we don't use spring. In Hibernate we do one operation at a time we have to open the transaction, then the data operation, and then commit the transaction, close the transaction, we do this because
From: http://www.cnblogs.com/hoojo/archive/2012/07/12/2587556.htmlEhcache has appeared in many projects, and the usage is relatively simple. The general configuration is available, and Ehcache can cache pages, objects, and data while supporting cluster/distributed Caching. Spring's support for Ehcache is also very good if it is easy to integrate spring and Hibernate. Ehcache supports memory and disk caching
Early in the morning, errorOrg.hibernate.TransactionException:Transaction not successfully startedAt Org.hibernate.engine.transaction.spi.AbstractTransactionImpl.rollback (abstracttransactionimpl.java:202)At Com.ljl.test.ssh.entity.CategoryServiceImpl.save (categoryserviceimpl.java:22)At Com.ljl.test.ssh.entity.HibernateTest.hihernate (hibernatetest.java:31)Is it because I have a conflict with two Tests?Then I'll try the one before that hibernate alon
construction of the environment and the creation of projects, see the above blog post. I've divided 2 profiles for this integration, The Spring-mybatis.xml, which contains the spring and MyBatis profiles, and a configuration file for Spring-mvc, plus 2 resource files: Jdbc.propertis and log4j.properties. The complete
spring4.x + Spring MVC + MYBATIS3 0 Configuration Application Development Framework (1)-Basic introduction
Two years ago has been doing the background of pure Java development, rarely involved in web development this piece, recently changed a pure Internet company, need to do a Web backend management system, before all the project with XML configuration, Contacted the company's spring4.x 0 configuration project, feel very feeling, not only simple conf
Developing a press release system using maven+hibernate+spring+spring MVCCourse Study Address: http://www.xuetuwuyou.com/course/163The course out of self-study, worry-free network: http://www.xuetuwuyou.comCourse IntroductionFirst, the software used in the course:1. JDK 1.82. Eclipse Neon3. Tomcat 84, Jetty5. MySQL6. Navicat +Second, the technical points involved
Spring + springmvc + hibernate integrated instance, springmvchib.pdf
In the previous blog, I wrote about the integration of spring and springmvc, and added hibernate to this article.
Like the previous one, this time is still a pilot jar package. This time, you need to add th
correct when the orderlistmanager service calls the auditmanager method.
Figure 1: integrated component transactions
The EJB architecture achieves this flexibility by allowing the component integrator to provide correct transaction attributes in a declarative manner (declaratively. We have not studied alternatives to declarative Transaction Management (called programmatic transaction control) because it involves changesCodeTo affect different running current events. Alm
the struts action class to spring to manageIn Applicationcontext.xmlXmlns:xsi= "Http://www.w3.org/2001/XMLSchema-instance"Xmlns:context= "Http://www.springframework.org/schema/context"XMLNS:AOP= "HTTP://WWW.SPRINGFRAMEWORK.ORG/SCHEMA/AOP"Xmlns:tx= "Http://www.springframework.org/schema/tx"xsi:schemalocation="http//Www.springframework.org/schema/beanshttp//www.springframework.org/schema/beans/spring-beans.x
the configuration file) reflects the request code and performs page call or forwarding. For example, the/login request may be a login request, so Struts2 should reply a login. the jsp page is used to log on to the client. However, the/login is not displayed in the address bar. jsp style. The specific address is hidden. Only the request address style is displayed. Struts2 labels are similar to jstl labels. They are essentially the same. They are used for convenient coding at the view layer and b
datasource. Note: Why should I just inject datasource on JdbcTemplate? 2. Inheriting Jdbcdaosupport In the DAO class, inherit Jdbcdaosupport. Since Jdbcdaosupport already has a reference to JdbcTemplate, it is equivalent to having the JdbcTemplate attribute as long as the inheritance jdbcdaosupport. 3. Inheriting JdbcTemplate Spring also offers other ORM framework integration patterns that are almost enti
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