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：

<?xml version="1.0" encoding="UTF-8"?><!-- <!DOCTYPE oval PUBLIC    "-//OVal/OVal Configuration DTD 1.3//EN"   "http://oval.sourceforge.net/oval-configuration-1.3.dtd">--><oval xmlns="http://oval.sf.net/oval-configuration" xmlns:xsi="http://http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://oval.sf.net/oval-configuration ../../../../../../../../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="\\d{15}|\\d{17}+[\\dX]" flags="0" />  </matchPattern> </constraintSet>-->
 <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>
  <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>

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