java oval xml 校验

oval framework可以使用注解、xml配置校验，注解就不说了，资料比较丰富。xml配置校验资料很少，中文资料没有，只能看英文很少的参考资料和源码了。渐渐的发现，英文资料质量比中文资料要高，以前经历的好几个问题都是通过查找英文资料才解决的，stackoverflow.com就挺好，是国外的csdn，这些都是题外话。直接上xml：

<p><?xml version="1.0" encoding="UTF-8"?>
<!-- 
<!DOCTYPE oval PUBLIC 
 "-//OVal/OVal Configuration DTD 1.3//EN"
 "<a href="http://oval.sourceforge.net/oval-configuration-1.3.dtd">http://oval.sourceforge.net/oval-configuration-1.3.dtd</a>">
-->
<oval xmlns="<a href="http://oval.sf.net/oval-configuration">http://oval.sf.net/oval-configuration</a>" xmlns:xsi="<a href="http://http://www.w3.org/2001/XMLSchema-instance">http://http://www.w3.org/2001/XMLSchema-instance</a>"
xsi:schemaLocation="<a href="http://oval.sf.net/oval-configuration">http://oval.sf.net/oval-configuration</a> ../../../../../../../../main/resources/net/sf/oval/configuration/xml/oval-configuration.xsd"
>
<!-- define a constraint set -->
<!--<constraintSet id="user.userid">
<notNull message="{context} is null" />
<matchPattern message="{context} does not match the pattern {pattern}">
<pattern pattern="<a>\\d{15}|\\d{17}+[\\dX</a>]" flags="0" />
</matchPattern>
</constraintSet>--></p>
<p><class type="com.haove.oval.TrainData" overwrite="false" applyFieldConstraintsToSetters="false">

<field name="sfzh">
<matchPattern message="身份证号不符合规则">
<pattern pattern="[0-9]{15}|[0-9]{17}[0-9X]" flags="0" />
</matchPattern>
</field>

<field name="xm">
<length min="1" max="24" message="姓名为 {min} 至 {max}个字符" />
<validateWithMethod methodName="isValid" parameterType="java.lang.String" message="姓名与学籍库不一致"/>
</field>

<field name="qjStart">
<length min="1" message="区间起点不能少于{min}个字符" />
</field> 

<field name="qjEnd" overwrite="true">
<length min="1" message="区间终点不能少于{min}个字符" />
</field></p>
<p><field name="rxrq">
<matchPattern message="入学日期为8位数字">
<pattern pattern="[0-9]{8}"/>
</matchPattern>
</field>
<field name="yhcs">
<matchPattern message="优惠次数为一位或两位数字">
<pattern pattern="[0-9]{1,2}" flags="0" />
</matchPattern>
</field>

<field name="kxlh">
<length min="1" message="卡序列号不能少于{min}个字符" />
</field>
</class>
</oval></p>

这个xml里包含了<notNull />,<notBlank />,<validateWithMethod />,<dateRange />,<pattern />等几种校验，比较有特点的是可以自定义方法校验validateWithMethod，有了这个就可以将校验扩展的更加强大，比如说可以将数据跟数据库里的数据进行比较校验。还有其他校验，可以参考源码，或问我。

另外，经查源码，发现方法public List<ConstraintViolation> validateFieldValue(final Object validatedObject, final Field validatedField,final Object fieldValueToValidate)可以只校验自己想校验的field，不会校验全部field，这个在有些时候还是蛮有用的。

另外附上，使用xml校验的java源码例子：

import java.lang.reflect.Field;
import java.util.List;

import net.sf.oval.ConstraintViolation;
import net.sf.oval.Validator;
import net.sf.oval.configuration.xml.XMLConfigurer;

public class TrainData {
    private String xm;
    private String sfzh;
    private String qjStart;
    private String qjEnd;
    private String rxrq;
//    @ValidateWithMethod(methodName = "isValid", parameterType = String.class)
    private String yhcs;
    private String kxlh;
    public TrainData(){}
    public TrainData(String xm, String sfzh, String qjStart, String qjEnd, String rxrq, String yhcs, String kxlh){
        this.xm = xm;
        this.sfzh = sfzh;
        this.qjStart = qjStart;
        this.qjEnd = qjEnd;
        this.rxrq = rxrq;
        this.yhcs = yhcs;
        this.kxlh = kxlh;
    }
    private boolean isValid(String xm) {
        //to do 数据库根据身份证号查询出的姓名进行比较
        if("1".equals(xm))
            return true;
        return false;
    }
    public static void main(String[] args) {
        try{
        TrainData data = new TrainData("刘艳梅","11010619770201304","","","20050101","2","123");
        XMLConfigurer x2 = new XMLConfigurer();
        x2.fromXML(XMLConfigurationTest.class.getResourceAsStream("TrainDataValidation.xml"));
        Validator validator = new Validator(x2);
//        Validator validator = new Validator();
//        Field f=TrainData.class.getDeclaredField("xm");
//        List<ConstraintViolation> violations = validator.validateFieldValue(new TrainData(), f, "12");
        List<ConstraintViolation> violations = validator.validate(data);
        for(ConstraintViolation var:violations){
            System.out.println(var.getMessage());
        }
        }catch(Exception ex){
            
        }
    }
}

所有参考的网址：

http://oval.sourceforge.net/userguide.html,

http://oval.sourceforge.net/api/index.html

http://sourceforge.net/projects/oval/forums/forum/488110/topic/4709092