根据XML配置规则导入Excel数据（二）定义XML规则对象

规则设计到三个对象。工具将XML 分三级解析。

类	对应 xml节点	作用
BeansSpecification	beans	表示一个根节点，包含所有Bean定义信息。
BeanSpecification	bean	代表bean的配置信息，包含多个propertys
PropertySpecification	property	代表bean 的属性配置信息

BeansSpecification.java

package com.ivfly.xlsbean;

import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;

/**
* 1.去掉了父类
* 2.添加单例
* 根元素
*/
public class BeansSpecification{
private static BeansSpecification instance= null;
public static BeansSpecification getInstance(InputStream xmlStream){
if(instance== null){
instance = BeansSpecificationUtil.getBeans(xmlStream);
}
return instance;
}
/**
* 跟元素下所有的beans
*/
private List<BeanSpecification> beans = new ArrayList<BeanSpecification>();

public List<BeanSpecification> getBeans() {
return this.beans;
}

public void addBean(BeanSpecification field) {
this.beans.add(field);
}

/**
* 根据文件名和类名查找
* @param fileName
* @return
*/
public BeanSpecification getBean(String fileName) {
for (BeanSpecification bean : beans) {
if (FileUtil.wildcard(bean.getFileName(), fileName)||bean.getClassName().equals(fileName)) {
return bean;
}
}
return null;
}
public BeanSpecification getBeanByClassName(String className) {
for (BeanSpecification bean : beans) {
if (bean.getClassName().equals(className)) {
return bean;
}
}
return null;
}

}

BeanSpecification.java

package com.ivfly.xlsbean;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;

import org.apache.commons.beanutils.PropertyUtils;

/**
*
* 描述实体属性
*/
public class BeanSpecification{

private Map<String,PropertySpecification> properties = new HashMap<String,PropertySpecification>();

/**
* 类路径名
*/
private String className;
/**
* 描述对应Class的properties
*/
private Map describer;
/**
* 文件名
*/
private String fileName;
/**
* excel中数据记录的起点行数
*/
private Integer from;

/**
* 列标题所在行
*/
private Integer head;

/**
* 类属性和excel列名对应键值对
*/
private Map<String, String> nv=new LinkedHashMap<String,String>();

/**
* 类属性和excel列名对应键值对,反过来
*/
private Map<String, String> vn=new HashMap<String,String>();

private List<String> propertyList = new ArrayList<String>();

public void addProperty(PropertySpecification field) {
this.nv.put(field.getName(), field.getValue());
this.vn.put(field.getValue(),field.getName());
this.properties.put(field.getName(), field);
propertyList.add(field.getName());
}

public List<String> getPropertyList() {
return propertyList;
}

public String getClassName() {
return this.className;
}

public void setClassName(String classname) {
this.className = classname;
}

public Map<String,PropertySpecification> getProperty() {
return properties;
}

public String getPropertyNameByValue(String value) {
return vn.get(value);
}

public boolean nullable(String propertyName){
if(this.properties.containsKey(propertyName)){
return this.properties.get(propertyName).isNullable();
}else return false;
}

public void setProperty(Map<String,PropertySpecification> property) {
this.properties = property;
}

public String getFileName() {
return fileName;
}

public void setFileName(String fileName) {
this.fileName = fileName;
}

public Integer getFrom() {
return from;
}

public void setFrom(Integer from) {
this.from = from;
}

public Integer getHead() {
return head;
}

public void setHead(Integer head) {
this.head = head;
}

public Map<String, String> getNv() {
return nv;
}

public void setNv(Map<String, String> nv) {
this.nv = nv;
}

@SuppressWarnings("unchecked")
public Map getDescriber() {
describer = new HashMap();
try {
Class cls = Class.forName(this.className);
Object bean = cls.newInstance();
describer = PropertyUtils.describe(bean);
} catch (Exception e) {
e.printStackTrace();
}
return describer;
}

}

PropertySpecification.java

package com.ivfly.xlsbean;
/**
*
* 描述属性的映射
*
*/
public class PropertySpecification {
/**
* 顺序号 没有维护
*/
private int seq;
/**
* 格式
*/
private String formular;
/**
* 提示格式
*/
private String warringFormat;

private String type;
/**
* 属性名
*/
private String name;

/**
* 列名
*/
private String value;

/**
* 是否可以为空
*/
private boolean nullable=true;

private int index;

public String getName() {
return name;
}

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

public String getValue() {
return value;
}

public void setValue(String value) {
this.value = value;
}

public int getIndex() {
return index;
}

public void setIndex(int index) {
this.index = index;
}

public boolean isNullable() {
return nullable;
}

public void setNullable(boolean nullable) {
this.nullable = nullable;
}

@Override
public String toString() {
return "name="+name+";value="+value+";seq="+seq+";type="+type+",nullable="+nullable;
}

public int getSeq() {
return seq;
}

public void setSeq(int seq) {
this.seq = seq;
}

public String getType() {
return type;
}

public void setType(String type) {
this.type = type;
}

public String getFormular() {
return formular;
}

public void setFormular(String formular) {
this.formular = formular;
}

public String getWarringFormat() {
return warringFormat;
}

public void setWarringFormat(String warringFormat) {
this.warringFormat = warringFormat;
}
}

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