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Mybatis source code parsing (1) (June 11, 2015), mybatis 2015 I. Introduction First, let's take a look at the source code structure of Mybatis. There are 19 packages in Mybatis3.2.7, and there may be fewer packages in other versions. Public SqlSessionFactory build (Reader reader, String environment, Properties properties ){SqlSessionFactory var5;Try {XMLConfigBuilder e = new XMLConfigBuilder (reader, enviro

Mongodb two ways to clusterCopy setis usually a master one from, a master more fromMongoDB requires a minimum of two nodes for replication. One is the master node, which handles client requests, and the rest is the slave node, responsible for replicating the data on the master node.MongoDB each node common collocation method is: A master one from, a master many from.The master node records all operations on it, oplog the primary node periodically from the node, and then performs these operations

factory and not taken from other objects.★ Factory Mode The returned instance can not be newly created, and it is also possible to return the instance created by the factory.DifferenceSimple factory: Used to produce any product in the same grade structure. (inability to add new products)Factory method: Used to produce fixed products in the same grade structure. (Support for adding any product)Abstract Factory: Used to produce all products of different product families. (for adding new products,

The whole week of Review week, the curriculum: computer composition, data structure, operating system. Constant review, summary, do the problem, but it is not on the machine programming.This week, I still insist on early morning, write Morning diary, do morning exercise, start a night of meditation.This week's harvest is: Reading two books: One is about meditation, practicing abdominal breathing. The second is: "Take time as a friend," write the importance of the personal mind, and how to grasp

, the same is considered to be certified, otherwise it will throw an exception Badcredentialsexception. The Userattribute property is defined in the form of usernameintheauthenticationtoken,grantedauthority[,grantedauthority].AuthenticationtrustresolverAuthenticationtrustresolver is an interface that defines two methods, isanonymous () and Isrememberme (), which all receive a authentication object as a parameter. It has a default implementation class Authenticationtrustresolverimpl,spring Securi

; Propertyname= "Name"column= "NAME"> Property> The set element is the definition of a collection whose Name property value is the corresponding property name in the Pojo - Setname= "Orders"Cascade= "All"> Keycolumn= "member_id">Key>specifies the foreign key of the "many" section, associated with the "One" End winner Key, where the column= "member_id" refers to the fields in the database, not the attributes in the bean - O