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A few words to understand POJO, JavaBean, EJB, DAO, DTO, VO, PO, BO, do 1. POJO POJO (Plain old Java Object) is called by Martin Fowler, Rebecca Parsons and Josh Mackenzie in a speech in 2000. According to Martin Fowler, "Plain old Java object" is literally translated as "pure old-fashioned Java objects," but everyone uses "simple Java objects" to address it. The implication is that there are some private parameters that act as properties of the o

data compared to some other business-to-business, consumer Web site traffic may not be too much, but the antique industry has his limitations, relative to this data on the author to see the No.1 has been antique mall. I observed that this site is based on a large number of long tail words to obtain traffic, the following we take the "Bloodstone price" as an example to detailed analysis of Bo Bao Mall's military, the first site posted out Http://shop

//----------------------------------------------------------------// Copyright (c) 2012 Shanghai Internet software Co., Ltd.// All Rights Reserved.// All Rights Reserved.//// File name: Bo // File function description:////// Create an ID: //// Modify the ID:// Modify the description://----------------------------------------------------------------Using system;Using system. Collections. Generic;Using system. text;Using beyondbit. Framework. Biz;Using

One, in the Java EE, often mention several objects (object), understanding their meaning can help us to better understand the object-oriented design thinking. ORM is an abbreviation for Object Relational Mapping "Objects relational Mapping"The popular point is that the object is bound to the relational database, and the object is used to represent the relational data. In the world of O/rmapping,There are a series of important objects, common with Vo,po,dto,pojo,dao,

Java (Po,vo,to,bo,dao,pojo) class name Package name explanation2015-04-28 20:11 by Loull, 18 Reading, 0 reviews, Favorites, compilation VO: Value object, view object PO: Persistent object qo: Query ObjectDAO: Data Access Object--also DAO pattern DTO: Data Transfer Object--also DTO modePO: Full Name is Persistant object The most vivid understanding of persistent objects is that a PO is a record in the database. The advantage is that a record can be pro

network load, but here I refer to the data transfer objects between the presentation layer and the service layer.VO (View object) Value ObjectA View object, used for the presentation layer, that encapsulates all the data for a specified page (or component).BO (business object) service objectFrom the business model perspective, see the domain objects in the UML component Domain model. A Java object that encapsulates the business logic, by invoking the

Original Address:several objects of Java (Po,vo,dao,bo,pojo) explained MunandongOne, Po:persistant object persistent objects, can be seen as a Java object mapped to a table in the database. The simplest PO is a record in a table in the corresponding database, and multiple records can be used with a collection of PO. The PO should not contain any operations on the database.Two, Vo:value object value objects. Typically used for data transfer between bu

. ---------------------------------------------------------- Bo: Business Object Encapsulate the business logic as an object (which can include multiple Po. It usually needs to convert Bo into Po to realize data persistence. Otherwise, the PO obtained from the DB, must be converted to Bo for use at the business layer ). There are three main concepts about

methods. This method is used in combination with Po to perform operations on the database.There is almost no possibility or need to convert each other. It is mainly used to encapsulate access to the database. With pojo, pojo can be persistently converted into Po, and PO can be assembled into vo and DTO. Bo: BusinessThe object Business Object encapsulates the Java object of the business logic. by calling the DAO method and combining Po and VO for busi

A large number of professional acronyms in J2EE development are confusing, especially when discussing issues with some experts, they were dizzy by the technical terms in three minutes. Po VO Bo DTO pojo Dao, A lot of things are coming (friends who have heard of Lao Luo's criticism of this phenomenon will smile ). First of all, I declare that I am not a master. The following summary is my own experience. For more information, see. Po:Persistant Object

Invincible Bo PI Qian Kun big color-Previous Article: Usage Invincible Bo PI Qian Kun big color-Article: style description Invincible Bo PI Qian Kun big color-next article: script explanation Invincible Bo PI Qian Kun big color-support: Subsequent Updates If you have not downloaded the script file when reading [pre

A large number of professional acronyms in J2EE development are confusing, especially when discussing issues with some experts, they were dizzy by the technical terms in three minutes. Po VO Bo DTO pojo Dao, A lot of things are coming (friends who have heard of Lao Luo's criticism of this phenomenon will smile ). First of all, I declare that I am not a master. The following summary is my own experience. For more information, see. Po:Persistant O

Use love Bo QQ mailbox Search machine display search out more than 8,000 data, but I exported to only 2000 data around, how to solve this problem? This is because the last few pages of the returned data are caused by the same, the export of automatic filtering repeat. I look for the Xuhui district of Shanghai, can be found in the search for QQ, some address only specific to Shanghai, not specific to Shanghai Xuhui, and some are not online. QQ infor

have 100 fields in a table, then the corresponding PO has 100 attributes. However, as long as we display 10 fields on the interface, the client uses WebService to fetch the data, and there is no need to pass the entire PO object to the client, we can pass the result to the client with a DTO with only these 10 attributes. This also does not expose the service-side table structure. After reaching the client, if the object is used to display the corresponding interface, then its identity will be c

service transmissions and Vo is used for the display of interfaces, and the DTO can be converted to VO for the foreground. 3. For example, in struts, using Actionform as VO requires a conversion because the PO is object-oriented and Actionform is corresponding to the view, which is to synthesize a actionform of the attributes to be displayed by several po. You can use the Beanutils copy method. 3. BO (business object) business Object (understood as

Java VO \ PO \ DAO \ BO details, vobo VO value object \ PO Persistent object, which consists of a set of properties and the get \ set Method of the properties. Full-process persistence object of PO The most vivid understanding is that a PO is a record in the database and can be seen as a java object that is mapped to a table in the database. The advantage is that a record can be processed as an object, which can be easily converted to other objects.

Sina technology news on the evening of June February 1, in response to Microsoft's bid of 44.6 billion US dollars for Yahoo's purchase, Hong Bo, a famous blog and five-quarter consulting partner, said in accepting the Sina technology line, microsoft intends to expand its Internet business through the acquisition method. After the gates age, Microsoft will be an important player in the Internet field. 　　Special Internet players "Obviously, this is a s

between the presentation layer and the service layer.5.VO (Value object) value objects?? Typically used for data transfer between business tiers, as is the case with PO, which contains only data. But it should be abstracted out of business objects that can correspond to tables, or not, depending on the needs of the business. Created with the new keyword, collected by GC.6.BO (business object) service object?? From the business model perspective, see

Now the domestic famous micro-Bo has Sina Weibo, Tencent Weibo, Sohu Weibo, NetEase Weibo, then is not able to use these micro-blog for their own site to increase the chain, the answer is yes, this microblogging do not need to be like the blog to keep, do not have to publish articles, the use of micro-Bo main station high weight, for their own site to bring an outside chain, We can test, the concrete effect

The large number of professional abbreviations in the development of Java EE is confusing, especially with some experts to discuss the problem, three minutes by someone's mouth full of professional terminology spray halo, PO VO BO DTO POJO DAO, a lot of it came (heard Old Luo's critique of this phenomenon friend will smile).First of all, I am not a master of the statement, the following summary is their own experience. Please advise me on the wrong pl