物采系统中，读取*query*.xml文件，使用了Apache的Digester来解析，我做的专家信息导入模块，也需要读取定义在XMl中的导入验证规则。原来使用的是ShiChao提供的SAX解析XML文件方法。现在改为用Digester来解析。

使用的是org.apache.commons.digester3.annotations下的包，annotations顾名思义就是注释模式，可参照：

http://commons.apache.org/digester/guide/annotations.html?上的样例。

我的做法具体如下：

1.我的导入规则验证的XML文件的内容:

?

<?xml version="1.0" encoding="UTF-8"?>
<validators>

<header name="出生日期">
	<validator type="reg">
		<reg>^\d{4}[\/-]\d{1,2}[\/-]\d{1,2}$</reg>
	</validator>
</header>

<header name="身份证*">
	<validator type="reg">
		<reg>^(\d{17})(\d|[xX])$</reg>
	</validator>
	<validator type="uniq">
		<className>com.cnpc.pms.exp.inf.entity.ExpertInfo</className>
		<filedName>idCardNum</filedName>
	</validator>
</header>

<header name="推荐单位*">
	<validator type="refer">
		<className>com.cnpc.pms.bizbase.rbac.orgview.entity.PurStruOrg</className>
		<filedName>code</filedName>
	</validator>
</header>

<header name="评审专业*">
    <validator type="custom">
		<className>expImportExcelManager</className>
		<methodName>verifyCategory</methodName>
	</validator>
</header>

..................
</validators>

?2.由于使用的是Digester的annotations模式，所以需要建立几个与xml文件内容相互映射的java bean：

? (1).ExpImpValContext类：

package com.cnpc.pms.exp.inf.dto;

import java.util.ArrayList;
import java.util.List;

import org.apache.commons.digester.annotations.rules.ObjectCreate;
import org.apache.commons.digester.annotations.rules.SetNext;
import com.cnpc.pms.base.query.model.PMSQuery;

/**
 * @author Song Shitao
 * @since 2011/7/11
 */
@ObjectCreate(pattern = "validators")
public class ExpImpValContext {

	/** The queries. */
	private List<ExpImpValHeader> headers = new ArrayList<ExpImpValHeader>();

	/**
	 * Adds the header.
	 * 
	 * @param header
	 *            the header
	 */
	@SetNext
	public void addHeader(ExpImpValHeader header) {
		this.headers.add(header);
	}

	/**
	 * Gets the headers.
	 * 
	 * @return the headers
	 */
	public List<ExpImpValHeader> getHeaders() {
		return headers;
	}
}

?(2).ExpImpValHeader类：

package com.cnpc.pms.exp.inf.dto;

import java.util.ArrayList;
import java.util.List;

import org.apache.commons.digester.annotations.rules.ObjectCreate;
import org.apache.commons.digester.annotations.rules.SetNext;
import org.apache.commons.digester.annotations.rules.SetProperty;

/**
 * @author Song Shitao
 * @since 2011/7/11
 */

@ObjectCreate(pattern = "validators/header")
public class ExpImpValHeader {
	/** The name. */
	@SetProperty(attributeName = "name", pattern = "validators/header")
	private String name;
	
	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	/** The validators. */
	private List<ExpImpValidator> validators = new ArrayList<ExpImpValidator>();
	/**
	 * Adds the validator.
	 * 
	 * @param validator
	 *            the validator
	 */
	@SetNext
	public void addValidator(ExpImpValidator validator) {
		this.validators.add(validator);
	}

	/**
	 * Gets the validators.
	 * 
	 * @return the validators
	 */
	public List<ExpImpValidator> getValidators() {
		return validators;
	}
}

?(3).ExpImpValidator类:

package com.cnpc.pms.exp.inf.dto;

import org.apache.commons.digester.annotations.rules.BeanPropertySetter;
import org.apache.commons.digester.annotations.rules.ObjectCreate;
import org.apache.commons.digester.annotations.rules.SetProperty;

/**
 * @author Song Shitao
 * @since 2011/7/11
 */
@ObjectCreate(pattern = "validators/header/validato