OFBiz是一个非常好的企业级开发框架，实现了多层的松耦合结构，其中一部分松耦合就是通过配置文件实现的，这里就要提到一些配置文件和开发文件。
1、首先是entityengine.xml文件，这个文件是配置数据源的，也包括数据库连接池、事务实现类的配置和字段类型配置文件。企业级系统的开发一般都离不开数据库，那么在OFBiz中，数据库的配置就在这个配置文件里面，先配置一个group-map，然后配置其对应的数据源：
datasource配置里面有一个 field-type-name ="mysql" ，到entitymodel.xml配置文件就知道是干吗用的了。
2.entitymodel.xml & entitygroup.xml
OFBiz本质上来说还是面向数据库的设计，entitymodel.xml的配置entity的，entity实体对应数据库里面的table，实体的field对应数据库里面的字段,如下是一个entity配置：
里面有一个type，这个type对应数据库字段的类型（日期型，字符串型，整型等），这个对于关系在哪里呢？就在刚才说的 field-type-name 里面配置，如果配置为mysql，那么entitygengine.xml中mysql的
field-type指向的文件是：
在fieldtypemysql.xml中，就可以找到如int10,varchar128表示的实际mysql字段类型了：
OFBiz这里为什么不在entitymodel里面直接使用字段在数据库中的类型，而这么绕呢？我想至少有两个目的：首先是公司企业开发时可以针对使用的字段类型有一个规范，所有的字段都采用这个配置文件中的字段类型，而不是开发人员自己随意定义数据库字段的类型；第二是为了使用不同Vendor的数据库，如果想从mysql换成oracle，只需要定义另一份fieldtypeoracle.xml，field-type-def中sql-type不变，而sql-tye换成oracle的类型即可。
entitygroup.xml配置文件时用于配置entitymodel.xml中配置的entity是属于哪个group的，这个group对应entityengine.xml中的group-name，如果忘记在entitygroup.xml中配置，那么在OFBiz 9之前，这个entity就无法使用，不会创建相应的table，OFBiz 9以后，默认的group name是org.ofbiz。
3.ofbiz-containers.xml 里面配置了各种容器类，经常修改的容器就是name为catalina-container的容器，使用的是embeded tomcat，里面可以修改各种tomcat的配置项，就像我们修改tomcat的配置文件server.xml一样，在里面修改端口等信息。
4.log4j.xml 日志配置文件
5.component-load.xml 这个文件在几个文件夹中都存在，如framework,applications,specialpurpose中。OFBiz将一个个应用实现为component，这些componnet是就好像tomcat中webapps中的一个个web应用。每次是否加载这个component可以在component-load.xml配置，如果不想加载，注释掉就可以。
到底哪些目录下的component-load.xml有效呢，这个目录在framework/base/config/component-load.xml进进行配置：
6.general.properties 这里面配置的东西很多，大家自己去看吧。
7.cache.properties 配置OFBiz中的缓存，配置这个文件需要对OFBiz中的缓存有所了解，这个在后续文章中进行分析。
其他还有一些比较配置的文件，就不一一说明了。
1、首先是entityengine.xml文件，这个文件是配置数据源的，也包括数据库连接池、事务实现类的配置和字段类型配置文件。企业级系统的开发一般都离不开数据库，那么在OFBiz中，数据库的配置就在这个配置文件里面，先配置一个group-map，然后配置其对应的数据源：
<
delegator
name
="default"
entity-model-reader
="main"
entity-group-reader
="main"
entity-eca-reader
="main"
distributed-cache-clear-enabled ="false" >
< group-map group-name ="org.ofbiz" datasource-name ="ofbiz" />
< group-map group-name ="com.aicent" datasource-name ="portal" />
</ delegator >
< datasource name ="ofbiz"
helper-class ="org.ofbiz.entity.datasource.GenericHelperDAO"
field-type-name ="mysql"
check-on-start ="false"
add-missing-on-start ="false"
check-pks-on-start ="false"
use-foreign-keys ="true"
join-style ="ansi-no-parenthesis"
alias-view-columns ="false"
drop-fk-use-foreign-key-keyword ="true"
table-type ="InnoDB"
character-set ="latin1"
collate ="latin1_swedish_ci" >
< read-data reader-name ="seed" />
< read-data reader-name ="seed-initial" />
< read-data reader-name ="demo" />
< read-data reader-name ="ext" />
< inline-jdbc
jdbc-driver ="com.mysql.jdbc.Driver"
jdbc-uri ="jdbc:mysql://localhost/ofbiztrunk"
jdbc-username ="root"
jdbc-password ="123456"
isolation-level ="ReadCommitted"
pool-minsize ="2"
pool-maxsize ="20" />
<!-- <jndi-jdbc jndi-server-name="localjndi" jndi-name="java:/MySqlDataSource" isolation-level="Serializable"/> -->
</ datasource >
distributed-cache-clear-enabled ="false" >
< group-map group-name ="org.ofbiz" datasource-name ="ofbiz" />
< group-map group-name ="com.aicent" datasource-name ="portal" />
</ delegator >
< datasource name ="ofbiz"
helper-class ="org.ofbiz.entity.datasource.GenericHelperDAO"
field-type-name ="mysql"
check-on-start ="false"
add-missing-on-start ="false"
check-pks-on-start ="false"
use-foreign-keys ="true"
join-style ="ansi-no-parenthesis"
alias-view-columns ="false"
drop-fk-use-foreign-key-keyword ="true"
table-type ="InnoDB"
character-set ="latin1"
collate ="latin1_swedish_ci" >
< read-data reader-name ="seed" />
< read-data reader-name ="seed-initial" />
< read-data reader-name ="demo" />
< read-data reader-name ="ext" />
< inline-jdbc
jdbc-driver ="com.mysql.jdbc.Driver"
jdbc-uri ="jdbc:mysql://localhost/ofbiztrunk"
jdbc-username ="root"
jdbc-password ="123456"
isolation-level ="ReadCommitted"
pool-minsize ="2"
pool-maxsize ="20" />
<!-- <jndi-jdbc jndi-server-name="localjndi" jndi-name="java:/MySqlDataSource" isolation-level="Serializable"/> -->
</ datasource >
datasource配置里面有一个 field-type-name ="mysql" ，到entitymodel.xml配置文件就知道是干吗用的了。
2.entitymodel.xml & entitygroup.xml
OFBiz本质上来说还是面向数据库的设计，entitymodel.xml的配置entity的，entity实体对应数据库里面的table，实体的field对应数据库里面的字段,如下是一个entity配置：
<
entity
entity-name
="Customerinfo"
package-name
="com.aicent.ccb"
no-auto-stamp
="true"
title ="customerinfo" >
< field name ="id" type ="int10" ></ field >
< field name ="name" type ="varchar128" ></ field >
< field name ="customernameshort" type ="varchar16" ></ field >
< field name ="country" type ="varchar64" ></ field >
< field name ="businessaddr" type ="text" ></ field >
< field name ="mailaddr" type ="text" ></ field >
< field name ="billaddr" type ="text" ></ field >
< field name ="phone" type ="varchar32" ></ field >
< field name ="fax" type ="varchar32" ></ field >
< field name ="website" type ="varchar128" ></ field >
< field name ="note" type ="text" ></ field >
</ entity >
title ="customerinfo" >
< field name ="id" type ="int10" ></ field >
< field name ="name" type ="varchar128" ></ field >
< field name ="customernameshort" type ="varchar16" ></ field >
< field name ="country" type ="varchar64" ></ field >
< field name ="businessaddr" type ="text" ></ field >
< field name ="mailaddr" type ="text" ></ field >
< field name ="billaddr" type ="text" ></ field >
< field name ="phone" type ="varchar32" ></ field >
< field name ="fax" type ="varchar32" ></ field >
< field name ="website" type ="varchar128" ></ field >
< field name ="note" type ="text" ></ field >
</ entity >
里面有一个type，这个type对应数据库字段的类型（日期型，字符串型，整型等），这个对于关系在哪里呢？就在刚才说的 field-type-name 里面配置，如果配置为mysql，那么entitygengine.xml中mysql的
field-type指向的文件是：
<
field-type
name
="mysql"
loader
="fieldfile"
location
="fieldtypemysql.xml"
/>
在fieldtypemysql.xml中，就可以找到如int10,varchar128表示的实际mysql字段类型了：
1
<
fieldtypemodel
xmlns:xsi
="http://www.w3.org/2001/XMLSchema-instance"
2 xsi:noNamespaceSchemaLocation ="http://ofbiz.apache.org/dtds/fieldtypemodel.xsd" >
3 <!-- ===================== field-type-def ==================== -->
4 <!-- General Types -->
5 < field-type-def type ="blob" sql-type ="BLOB" java-type ="java.sql.Blob" ></ field-type-def >
6
7 < field-type-def type ="date-time" sql-type ="DATETIME" java-type ="java.sql.Timestamp" ></ field-type-def >
8 < field-type-def type ="date" sql-type ="DATE" java-type ="java.sql.Date" ></ field-type-def >
9 < field-type-def type ="time" sql-type ="TIME" java-type ="java.sql.Time" ></ field-type-def >
10
11 < field-type-def type ="currency-amount" sql-type ="DECIMAL(18,2)" java-type ="java.math.BigDecimal" >< validate method ="isSignedDouble" /></ field-type-def >
12 < field-type-def type ="currency-precise" sql-type ="DECIMAL(18,3)" java-type ="java.math.BigDecimal" >< validate method ="isSignedDouble" /></ field-type-def >
13 < field-type-def type ="fixed-point" sql-type ="DECIMAL(18,6)" java-type ="java.math.BigDecimal" >< validate method ="isSignedDouble" /></ field-type-def >
14 < field-type-def type ="floating-point" sql-type ="DECIMAL(18,6)" java-type ="Double" >< validate method ="isSignedDouble" /></ field-type-def >
15 < field-type-def type ="numeric" sql-type ="DECIMAL(20,0)" java-type ="Long" >< validate method ="isSignedLong" /></ field-type-def >
16 < field-type-def type ="integer" sql-type ="INTEGER" java-type ="Integer" ></ field-type-def >
17
18 < field-type-def type ="id" sql-type ="VARCHAR(20)" java-type ="String" ></ field-type-def >
19 < field-type-def type ="id-long" sql-type ="VARCHAR(60)" java-type ="String" ></ field-type-def >
20 < field-type-def type ="id-vlong" sql-type ="VARCHAR(250)" java-type ="String" ></ field-type-def >
21
22 < field-type-def type ="indicator" sql-type ="CHAR(1)" java-type ="String" ></ field-type-def >
23 < field-type-def type ="very-short" sql-type ="VARCHAR(10)" java-type ="String" ></ field-type-def >
24 < field-type-def type ="short-varchar" sql-type ="VARCHAR(60)" java-type ="String" ></ field-type-def >
25 < field-type-def type ="long-varchar" sql-type ="VARCHAR(255)" java-type ="String" ></ field-type-def >
26 < field-type-def type ="very-long" sql-type ="LONGTEXT" java-type ="String" ></ field-type-def >
27
28 < field-type-def type ="comment" sql-type ="VARCHAR(255)" java-type ="String" ></ field-type-def >
29 < field-type-def type ="description" sql-type ="VARCHAR(255)" java-type ="String" ></ field-type-def >
30 < field-type-def type ="name" sql-type ="VARCHAR(100)" java-type ="String" ></ field-type-def >
31 < field-type-def type ="value" sql-type ="VARCHAR(255)" java-type ="String" ></ field-type-def >
32
33 <!-- customize field type definitions for ccb -->
34 < field-type-def type ="text" sql-type ="TEXT" java-type ="String" ></ field-type-def >
35
36 < field-type-def type ="char" sql-type ="CHAR(1)" java-type ="String" ></ field-type-def >
37 < field-type-def type ="char125" sql-type ="CHAR(125)" java-type ="String" ></ field-type-def >
38 < field-type-def type ="varchar16" sql-type ="VARCHAR(16)" java-type ="String" ></ field-type-def >
39 < field-type-def type ="varchar20" sql-type ="VARCHAR(20)" java-type ="String" ></ field-type-def >
40 < field-type-def type ="varchar24" sql-type ="VARCHAR(24)" java-type ="String" ></ field-type-def >
41 < field-type-def type ="varchar50" sql-type ="VARCHAR(50)" java-type ="String" ></ field-type-def >
42 < field-type-def type ="varchar64" sql-type ="VARCHAR(64)" java-type ="String" ></ field-type-def >
43 < field-type-def type ="varchar128" sql-type ="VARCHAR(128)" java-type ="String" ></ field-type-def >
44 </ fieldtypemodel >
2 xsi:noNamespaceSchemaLocation ="http://ofbiz.apache.org/dtds/fieldtypemodel.xsd" >
3 <!-- ===================== field-type-def ==================== -->
4 <!-- General Types -->
5 < field-type-def type ="blob" sql-type ="BLOB" java-type ="java.sql.Blob" ></ field-type-def >
6
7 < field-type-def type ="date-time" sql-type ="DATETIME" java-type ="java.sql.Timestamp" ></ field-type-def >
8 < field-type-def type ="date" sql-type ="DATE" java-type ="java.sql.Date" ></ field-type-def >
9 < field-type-def type ="time" sql-type ="TIME" java-type ="java.sql.Time" ></ field-type-def >
10
11 < field-type-def type ="currency-amount" sql-type ="DECIMAL(18,2)" java-type ="java.math.BigDecimal" >< validate method ="isSignedDouble" /></ field-type-def >
12 < field-type-def type ="currency-precise" sql-type ="DECIMAL(18,3)" java-type ="java.math.BigDecimal" >< validate method ="isSignedDouble" /></ field-type-def >
13 < field-type-def type ="fixed-point" sql-type ="DECIMAL(18,6)" java-type ="java.math.BigDecimal" >< validate method ="isSignedDouble" /></ field-type-def >
14 < field-type-def type ="floating-point" sql-type ="DECIMAL(18,6)" java-type ="Double" >< validate method ="isSignedDouble" /></ field-type-def >
15 < field-type-def type ="numeric" sql-type ="DECIMAL(20,0)" java-type ="Long" >< validate method ="isSignedLong" /></ field-type-def >
16 < field-type-def type ="integer" sql-type ="INTEGER" java-type ="Integer" ></ field-type-def >
17
18 < field-type-def type ="id" sql-type ="VARCHAR(20)" java-type ="String" ></ field-type-def >
19 < field-type-def type ="id-long" sql-type ="VARCHAR(60)" java-type ="String" ></ field-type-def >
20 < field-type-def type ="id-vlong" sql-type ="VARCHAR(250)" java-type ="String" ></ field-type-def >
21
22 < field-type-def type ="indicator" sql-type ="CHAR(1)" java-type ="String" ></ field-type-def >
23 < field-type-def type ="very-short" sql-type ="VARCHAR(10)" java-type ="String" ></ field-type-def >
24 < field-type-def type ="short-varchar" sql-type ="VARCHAR(60)" java-type ="String" ></ field-type-def >
25 < field-type-def type ="long-varchar" sql-type ="VARCHAR(255)" java-type ="String" ></ field-type-def >
26 < field-type-def type ="very-long" sql-type ="LONGTEXT" java-type ="String" ></ field-type-def >
27
28 < field-type-def type ="comment" sql-type ="VARCHAR(255)" java-type ="String" ></ field-type-def >
29 < field-type-def type ="description" sql-type ="VARCHAR(255)" java-type ="String" ></ field-type-def >
30 < field-type-def type ="name" sql-type ="VARCHAR(100)" java-type ="String" ></ field-type-def >
31 < field-type-def type ="value" sql-type ="VARCHAR(255)" java-type ="String" ></ field-type-def >
32
33 <!-- customize field type definitions for ccb -->
34 < field-type-def type ="text" sql-type ="TEXT" java-type ="String" ></ field-type-def >
35
36 < field-type-def type ="char" sql-type ="CHAR(1)" java-type ="String" ></ field-type-def >
37 < field-type-def type ="char125" sql-type ="CHAR(125)" java-type ="String" ></ field-type-def >
38 < field-type-def type ="varchar16" sql-type ="VARCHAR(16)" java-type ="String" ></ field-type-def >
39 < field-type-def type ="varchar20" sql-type ="VARCHAR(20)" java-type ="String" ></ field-type-def >
40 < field-type-def type ="varchar24" sql-type ="VARCHAR(24)" java-type ="String" ></ field-type-def >
41 < field-type-def type ="varchar50" sql-type ="VARCHAR(50)" java-type ="String" ></ field-type-def >
42 < field-type-def type ="varchar64" sql-type ="VARCHAR(64)" java-type ="String" ></ field-type-def >
43 < field-type-def type ="varchar128" sql-type ="VARCHAR(128)" java-type ="String" ></ field-type-def >
44 </ fieldtypemodel >
OFBiz这里为什么不在entitymodel里面直接使用字段在数据库中的类型，而这么绕呢？我想至少有两个目的：首先是公司企业开发时可以针对使用的字段类型有一个规范，所有的字段都采用这个配置文件中的字段类型，而不是开发人员自己随意定义数据库字段的类型；第二是为了使用不同Vendor的数据库，如果想从mysql换成oracle，只需要定义另一份fieldtypeoracle.xml，field-type-def中sql-type不变，而sql-tye换成oracle的类型即可。
entitygroup.xml配置文件时用于配置entitymodel.xml中配置的entity是属于哪个group的，这个group对应entityengine.xml中的group-name，如果忘记在entitygroup.xml中配置，那么在OFBiz 9之前，这个entity就无法使用，不会创建相应的table，OFBiz 9以后，默认的group name是org.ofbiz。
<
entitygroup
xmlns:xsi
="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation ="http://www.ofbiz.org/dtds/entitygroup.xsd" >
< entity-group group ="com.aicent" entity ="Customerextra" />
< entity-group group ="com.aicent" entity ="Customerinfo" />
</ entitygroup >
xsi:noNamespaceSchemaLocation ="http://www.ofbiz.org/dtds/entitygroup.xsd" >
< entity-group group ="com.aicent" entity ="Customerextra" />
< entity-group group ="com.aicent" entity ="Customerinfo" />
</ entitygroup >
3.ofbiz-containers.xml 里面配置了各种容器类，经常修改的容器就是name为catalina-container的容器，使用的是embeded tomcat，里面可以修改各种tomcat的配置项，就像我们修改tomcat的配置文件server.xml一样，在里面修改端口等信息。
4.log4j.xml 日志配置文件
5.component-load.xml 这个文件在几个文件夹中都存在，如framework,applications,specialpurpose中。OFBiz将一个个应用实现为component，这些componnet是就好像tomcat中webapps中的一个个web应用。每次是否加载这个component可以在component-load.xml配置，如果不想加载，注释掉就可以。
<
component-loader
xmlns:xsi
="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation ="http://ofbiz.apache.org/dtds/component-loader.xsd" >
< load-component component-location ="commonext" /> <!-- common component used by most other components -->
< load-component component-location ="securityext" />
<!--
<load-component component-location="party"/>
<load-component component-location="content"/>
<load-component component-location="workeffort"/>
<load-component component-location="product"/>
<load-component component-location="manufacturing"/>
<load-component component-location="accounting"/>
<load-component component-location="humanres"/>
<load-component component-location="order"/>
<load-component component-location="marketing"/>
-->
</ component-loader >
xsi:noNamespaceSchemaLocation ="http://ofbiz.apache.org/dtds/component-loader.xsd" >
< load-component component-location ="commonext" /> <!-- common component used by most other components -->
< load-component component-location ="securityext" />
<!--
<load-component component-location="party"/>
<load-component component-location="content"/>
<load-component component-location="workeffort"/>
<load-component component-location="product"/>
<load-component component-location="manufacturing"/>
<load-component component-location="accounting"/>
<load-component component-location="humanres"/>
<load-component component-location="order"/>
<load-component component-location="marketing"/>
-->
</ component-loader >
到底哪些目录下的component-load.xml有效呢，这个目录在framework/base/config/component-load.xml进进行配置：
<
component-loader
xmlns:xsi
="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation ="http://ofbiz.apache.org/dtds/component-loader.xsd" >
< load-components parent-directory ="framework" />
< load-components parent-directory ="themes" />
< load-components parent-directory ="applications" />
< load-components parent-directory ="specialpurpose" />
< load-components parent-directory ="hot-deploy" />
</ component-loader >
xsi:noNamespaceSchemaLocation ="http://ofbiz.apache.org/dtds/component-loader.xsd" >
< load-components parent-directory ="framework" />
< load-components parent-directory ="themes" />
< load-components parent-directory ="applications" />
< load-components parent-directory ="specialpurpose" />
< load-components parent-directory ="hot-deploy" />
</ component-loader >
6.general.properties 这里面配置的东西很多，大家自己去看吧。
7.cache.properties 配置OFBiz中的缓存，配置这个文件需要对OFBiz中的缓存有所了解，这个在后续文章中进行分析。
其他还有一些比较配置的文件，就不一一说明了。