SSM framework-Automatically creating code using MyBatis Generator

These two days need to use the MyBatis code automatically generated functionality, because MyBatis belongs to a semi-automatic ORM framework, so the main task is to configure mapping mapping file, but because the handwriting map file is very error-prone, so you can use the MyBatis generator automatically generated entity classes, DAO interfaces, and mapping mapping files. This can save a lot of effort, copy the generated code to project engineering.

There are many ways to use auto-generation, and you can install plug-ins in eclipse, but the following is the way I think it is easy, the simplest, no plug-ins, just the next few jar packs, put them under a directory.

Generate the required files and jar packages for your code:

(File: http://download.csdn.net/detail/u012909091/7206091)

There are jar packages for the MyBatis framework, database driver jar packages, and MyBatis generator jar packages. The Generatorconfig.xml is a file that needs to be configured by us, configured as follows:

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2. <? XML version= "1.0" encoding="UTF-8"?>
4. <! DOCTYPE generatorconfiguration
6. Public "-//mybatis.org//dtd MyBatis Generator Configuration 1.0//en"
8. "Http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
10. <generatorconfiguration>
12. <!--database-driven
14. <classpathentry location="Mysql-connector-java-5.1.25-bin.jar"/>
16. <context id="Db2tables" targetruntime="MyBatis3">
18. <commentgenerator>
20. <property name="suppressdate" value="true"/>
22. <!--whether to remove automatically generated comments true: Yes: false: No --
24. <property name="suppressallcomments" value="true"/>
26. </commentgenerator>
28. <!--database link URL, user name, password--
30. <jdbcconnection driverclass="com.mysql.jdbc.Driver" connectionurl= "jdbc:mysql:// 125.221.1.1/db_124 " userid=" dem " password=" dem ">
32. </jdbcconnection>
34. <javatyperesolver>
36. <property name="forcebigdecimals" value= "false"/>
38. </javatyperesolver>
40. <!--generate the package name and location of the model--
42. <javamodelgenerator targetpackage="Test.domain" targetproject="src">
44. <property name="enablesubpackages" value="true"/>
46. <property name="trimstrings" value="true"/>
48. </javamodelgenerator>
50. <!--generate the package name and location of the mapping file--
52. <sqlmapgenerator targetpackage="test.mapping" targetproject="src">
54. <property name="enablesubpackages" value="true"/>
56. </sqlmapgenerator>
58. <!--Generate DAO's package name and location--
60. <javaclientgenerator type="Xmlmapper" targetpackage= "test. Idao " targetproject="src ">
62. <property name="enablesubpackages" value="true"/>
64. </javaclientgenerator>
66. <!--the table TableName to be generated is the table name or view name in the database Domainobjectname is the entity class name--
68.         <table < span class= "attribute" >tablename= "user_info_t"   Domainobjectname= "User"  enablecountbyexample= "false"  enableupdatebyexample= "false"  enabledeletebyexample= "false"  enableselectbyexample= "false"  selectbyexamplequeryid= "false" ></table >  
70. </Context>
72. </generatorconfiguration>

When these are completed, simply open the console and enter the Lib directory to execute the script:

Java-jar Mybatis-generator-core-1.3.2.jar-configfile Generatorconfig.xml-overwrite

Can.

So after the build, you can find the corresponding folder in the SRC directory, each table will correspond to three files (entity class, interface, configuration file).

SSM framework-Automatically creating code using MyBatis Generator