longcxm1的博客

        iBATIS与和hibernate不同，它不是直接把类映射为数据库表或者说把类的字段映射为数据库列，而是把SQL语句的参数与结果（也即输入和输出）映射为类 一、 SqlMapConfig.xml是ibatis最重要的配置文件，主要定义数据源和映射文件的相关信息，如下所示： <?xml version="1.0" encoding="UTF-8"...

      Hibernate功能强大，数据库无关性好，O/R映射能力强，如果你对Hibernate相当精通，而且对Hibernate进行了适当的封装，那么你的项目整个持久层代码会相当简单，需要写的代码很少，开发速度很快，非常爽。      Hibernate的缺点就是学习门槛不低，要精通门槛更高，而且怎么设计O/R映射，在性能和对象模型之间如何权衡取得平衡，以及怎样用好Hibern...

Create a "Hello World" struts2 example, you need to do four things: 1. Create a class to store the welcome message (the model)2. Create a server page to present the message (the view)3. Cre...

The container receives from the web server a request for the resource hello.action. According to the settings loaded from the web.xml, the container finds that all requests are being routed to org.a...

 <select id="getUsers"parameterClass="user"resultMap="get-user-result"> selectid,name,sexfrom t_user<dynamic prepend="WHERE">   <isNotEmpty prepend="AND&quo

spring整合struts2的步骤： （其实很简单，只需要把action的类名换成spring的bean名称即可）1.在web.xml文件中添加spring的ContextLoaderListener监听器；2.把acion的class属性改成spring的bean名称；3.添加相关的依赖包，即可；...

 一、Spring概述 The Spring Framework is a lightweight solution and a potential one-stop-shop for building your enterprise-ready applications.However, Spring is modular, allowing you to use only thos...

 一、依赖注入概述 Dependency injection (DI) is a process whereby objects define their dependencies, that is, the other objects they work with,The container then injects those dependencies when it crea...