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下面就正式来讲一下开发步骤：
首先，在tomcat5.x下建一个jdbc/edainfo的数据源，数据库可以是oracle、sql server、mysql。表的结构如下：
create table example (
id varchar(13) not null ,
name varchar(50) null ,
address varchar(50) null
) on [primary]
其中，id为主键。
datasource.xml内容如下：
<?xml version="1.0" encoding="gb2312"?>
<database>
<model name="examplemodel">
<tablename>example</tablename>
<columns>
<column type="0" name="id" tabcolumn="id"/>
<column type="0" name="name" tabcolumn="name"/>
<column type="0" name="address" tabcolumn="address"/>
<column type="2" name="pagenum" tabcolumn="pagenum"/>
<column type="2" name="operation" tabcolumn="operation"/>
</columns>
<relations>
</relations>
<pk tabcolumn="id" />
<pages>
<page name="fore" size="20" viewpage="5"/>
</pages>
</model>
</database>
init-config.xml前面已经介绍过，这里就不详细介绍了。
将以上两个文件都放置到web-inf目录下。
在web.xml中，建立一个net.edainfo.filter.setcharacterencodingfilter的过滤器。
建立一个examplemodel.java，如下所示：
package net.edainfo.example;
import java.util.map;
import net.edainfo.db.dbmodel;
import net.edainfo.db.modelexception;
import net.edainfo.util.format.encode;
import net.edainfo.util.format.stringprocessor;
public class examplemodel extends dbmodel {
public examplemodel(map database) throws modelexception {
super("examplemodel" ,database);
}
public void setid(string id) throws modelexception {
set("id" ,id);
}
public string getid() throws modelexception {
return getstring("id");
}
public void setname(string name) throws modelexception {
set("name" ,name);
}
public string getname() throws modelexception {
return getstring("name");
}
public void setaddress(string address) throws modelexception {
set("address" ,address);
}
public string getaddress() throws modelexception {
return getstring("address");
}
}
建立一个异常类exampleexception.java：
package net.edainfo.example;
import net.edainfo.exception.baseexception;
public class exampleexception extends baseexception {
static public string createfailed = "exception.createfailed";
static public string retrievefailed = "exception.retrievefailed";
static public string updatefailed = "exception.updatefailed";
static public string deletefailed = "exception.deletefailed";
static public string[] exampleargs = {"edainfo.example"};
}
再建立一个action，exampleaction.java：
package net.edainfo.example;
import java.util.arraylist;
import java.util.map;
import javax.servlet.http.httpservletrequest;
import javax.servlet.http.httpservletresponse;
import net.edainfo.db.dao;
import net.edainfo.util.actionbase;
import net.edainfo.util.edaglobals;
import net.edainfo.util.formparameter;
import net.edainfo.util.page.pagelist;
import org.apache.struts.action.actionform;
import org.apache.struts.action.actionforward;
import org.apache.struts.action.actionmapping;
import org.apache.struts.validator.dynavalidatorform;
/**
* @author slf
*
* todo to change the template for this generated type comment go to window –
* preferences – java – code style – code templates
*/
public class exampleaction extends actionbase {
public actionforward executeaction(actionmapping mapping, actionform form,
httpservletrequest request, httpservletresponse response, map params)
throws exception {
dynavalidatorform theform = (dynavalidatorform) form;
string next = "";
conn = this.getconnection();
string operation = (string) theform.get("operation");
dao dao = new dao(conn, params.get(edaglobals.database_type_key)
+ "");
if (operation == null || operation.equals(""))
operation = "list";
if (operation.equals("list")) {
examplemodel model = new examplemodel((map) params
.get(edaglobals.data_base_key));
string pagenum = (string) theform.get("pagenum");
if (pagenum == null || pagenum.equals("")) {
pagenum = "1";
}
theform.set("pagenum" ,pagenum);
int pagesize = model.getpagesize("fore");
int viewpage = model.getviewpage("fore");
pagelist lists = dao.select(model, "", new arraylist(), "", integer
.parseint(pagenum), pagesize, viewpage, dao.distinct_off);
map parms = formparameter.setlistpage (theform ,lists ,"example" ,
request);
request.setattribute ("parms" ,parms);
next = "list";
} else if(operation.equals("add")) {
examplemodel model = new examplemodel((map) params
.get(edaglobals.data_base_key));
model = (examplemodel)formparameter.getparameter (model ,theform);
model.setid(dao.generateid());
dao.create(model);
next = "add";
} else if(operation.equals("addform")) {
next = "addform";
theform.set("operation" ,"add");
}
return mapping.findforward(next);
}
}
然后是建立jsp页面，这里有两个页面，一个是浏览页，一个是表单页；
浏览页，listexample.jsp：
<%@ page contenttype="text/html; charset=utf-8"%>
<%@ taglib uri="/web-inf/struts-bean.tld" prefix="bean"%>
<%@ taglib uri="/web-inf/struts-html.tld" prefix="html"%>
<%@ taglib uri="/web-inf/struts-logic.tld" prefix="logic"%>
<%
string linkpage = (string)request.getattribute("linkpage");
%>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=gb2312">
<title><bean:message key="edainfo.example"/></title>
</head>
<body>
<table width="75%" border="0" align="center" cellpadding="3" cellspacing="1">
<tr>
<td colspan="2"><html:link action="example?operation=addform"><bean:message key="example.add"/></html:link></td>
</tr>
<tr>
<td width="47%"><bean:message key="example.name"/></td>
<td width="53%"><bean:message key="example.address"/></td>
</tr>
<logic:iterate name="lists" id="list">
<tr>
<td><bean:write name="list" property="name"/></td>
<td><bean:write name="list" property="address"/></td>
</tr>
</logic:iterate>
<tr align="center">
<td colspan="2">
<%@ include file="/turnpage.jsp" %>
</td>
</tr>
</table>
</body>
</html>
表单页，exampleform.jsp：
<%@ page contenttype="text/html; charset=utf-8"%>
<%@ taglib uri="/web-inf/struts-bean.tld" prefix="bean"%>
<%@ taglib uri="/web-inf/struts-html.tld" prefix="html"%>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=gb2312">
<title><bean:message key="edainfo.example"/></title>
</head>
<body>
<logic:messagespresent>
<ul>
<html:messages id="error">
<li><bean:write name="error"/></li>
</html:messages>
</ul>
</logic:messagespresent>
<html:form action="example">
<table width="75%" border="0" align="center" cellpadding="3" cellspacing="1">
<tr>
<td width="26%"><bean:message key="example.name"/></td>
<td width="74%"><html:text property="name" size="20"/></td>
</tr>
<tr>
<td><bean:message key="example.address"/></td>
<td><html:text property="address" size="20"/></td>
</tr>
<tr align="center">
<td colspan="2"><html:submit property="submit" styleclass="buttonface">
<bean:message key="button.save"/>
</html:submit></td>
</tr>
</table>
<html:hidden property="operation"/>
</html:form>
</body>
</html>
以上两个页面放到页面根目录下，请记得将请记得将turnpage.jsp也拷贝过来。
然后，我们在struts-config.xml中配置我们的action：
<?xml version="1.0" encoding="iso-8859-1" ?>
<!doctype struts-config public
"-//apache software foundation//dtd struts configuration 1.1//en"
"http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd">
<struts-config>
<!– ========== form bean definitions =================================== –>
<form-beans>
<form-bean name="exampleform"
type="org.apache.struts.validator.dynavalidatorform">
<form-property name="name" type="java.lang.string"/>
<form-property name="address" type="java.lang.string"/>
<form-property name="operation" type="java.lang.string"/>
<form-property name="pagenum" type="java.lang.string"/>
</form-bean>
</form-beans>
<!– global exception definitions –>
<global-exceptions>
<exception handler="net.edainfo.exception.baseexceptionhandler"
key="exception.unawareerror"
path="/error.jsp"
scope="request"
type="java.lang.exception"/>
</global-exceptions>
<!– ========== global forward definitions ============================== –>
<global-forwards type="org.apache.struts.action.actionforward">
</global-forwards>
<!– ========== action mapping definitions ============================== –>
<action-mappings>
<action path="/example"
type="net.edainfo.example.exampleaction"
name="exampleform"
validate="false"
scope="request">
<forward name="list" path="/listexample.jsp"/>
<forward name="add" path="/example.do" redirect="true"/>
<forward name="addform" path="/exampleform.jsp"/>
</action>
</action-mappings>
<!– ========== message resources definitions =========================== –>
<message-resources
null="false"
parameter="applicationresources"/>
<!– ========== plug ins configuration ================================== –>
<!–
add multiple validator resource files by setting the pathnames property
with a comma delimitted list of resource files to load.
–>
<plug-in classname="org.apache.struts.validator.validatorplugin">
<set-property property="pathnames" value="/web-inf/validator-rules.xml,
/web-inf/validation.xml"/>
</plug-in>
</struts-config>
在web-inf/lib下记得要放如下包：struts1.1及它的相关包、jfreechart及其相关包、edabase-model.jar、log4j-1.2.8.jar、jdom.jar、xercesimpl.jar、xmlparserapis.jar。
现在已经完成，启动tomcat，在浏览器中敲如http://xxxxx/example.do，就可以看到效果了。
在这里，主要演示了edainfo-model的数据库操作、分页及actionform中批量的获取数据，如果你已经对它发生兴趣了，请继续关注本站的相关文章，还有更多精彩的内容等着你。
下面是这个例子的完整源码下载：
edainfo-model简单例子下载
