调整XML的的结构。增加属性/节点，调整节点层次，转多配置文件等。

XMLTransform

package com.importconfig

import groovy.util.XmlNodePrinter;
import groovy.util.XmlNodePrinter.NamespaceContext;

import java.io.PrintWriter;
import java.util.Map;

import org.codehaus.groovy.runtime.InvokerHelper;

/**
 * 把v1.0的配置文件转换为v2.0
 * @version v2.0 
 */

// XSLT Extensible Stylesheet Language Transformations

public class XSLTtransform {

    def toNumber(obj){
        if(obj==null || obj.isEmpty()){
            return Integer.MAX_VALUE;
        }

        return Integer.valueOf(obj);
    }

    def toStringUtil(obj){
        if(obj==null || obj.isEmpty()){
            return "";
        }

        return obj.toString();
    }

    def execute(){
        /* 测试时获取当前路径下的文件 */
        def importConfig
        /* 获取当前路径下的原始配置文件 */
        def file
        if( false && inEclpse){
            def parentFile = new File(getClass().getResource(".").toURI())
            importConfig = "excelimportconifg.xml"
            file = new File(parentFile, importConfig);
        }else{
            importConfig = "E:/cndata-add/workspaces/zj_bpaf/tools/xmlgen/test/com/importconfig/excelimportconifg.xml"
            file = new File(importConfig)
        }
        
        def root = new XmlParser().parse(file);

        // 获取全部的第二节点Excel
        def excels = root.Excel
        excels.each { excel ->
            // 添加/修改属性
			excel.@multiple = 'N'
			// 拷贝Excel的孩子节点，并进行排序
			def excelChildren = excel.children().clone().sort{a,b->
				// 先按name，再excelRowNum，最后考虑tableName进行排序
				a.name()<=>b.name()?:toNumber(a.@excelRowNUM) <=> toNumber(b.@excelRowNUM)?: a.@tableName<=>b.@tableName
			}
			// 删除excel节点的所有孩子节点
			excel.children().clear()

			// 增加sheet节点，同时设置sheet的属性index和caption
			excel.appendNode('sheet', [index: "1", caption:""], )

			// 遍历excel原始的clumn孩子节点（上面已经进行了clone）
			excelChildren.findAll({it.name()=='clumn'}).each{clumn->
				// 找到
				def clumnNode = excel.sheet[0].clumn.find{it.@excelRowNUM==toStringUtil(clumn.@excelRowNUM)}
				if(!clumnNode){
					if(clumn.@excelRowNUM == null || [email protected]() ){
						excel.sheet[0].appendNode('clumn', [
							excelRowNUM:""
						], )
					}else{
						excel.sheet[0].appendNode('clumn', [
							excelRowNUM:toStringUtil(clumn.@excelRowNUM),
							efficacy:toStringUtil(clumn.@efficacy),
							efficacySql:toStringUtil(clumn.@efficacySql),
							efficacyerrMeg:toStringUtil(clumn.@efficacyerrMeg)
						], )
					}
				}

				clumnNode = excel.sheet[0].clumn.find{it.@excelRowNUM==toStringUtil(clumn.@excelRowNUM)}
				clumnNode.appendNode('column', [
					caption:toStringUtil(clumn.@meg) ,
					name:toStringUtil(clumn.@clumName) ,
					tableName:toStringUtil(clumn.@tableName) ,
					type:toStringUtil(clumn.@clumType) ,
					transValueSql:toStringUtil(clumn.@transValueSql),
					// XXX 这里的对应关系要注意哦
					confirmValue:toStringUtil(clumn.@confimValue),
					isID:toStringUtil(clumn.@isID),
					childTable:toStringUtil(clumn.@childTable).replaceAll("\\.", ","),
					childClum:toStringUtil(clumn.@childClum).replaceAll("\\.", ","),
					isupdateKey:toStringUtil(clumn.@isupdateKey)
				],)
			}

			// 遍历excel原始的extsql孩子节点（上面已经进行了clone）
			excelChildren.findAll({it.name()=='extsql'}).each{extsql->
				if(!excel.sheet[0].extsql){
					excel.sheet[0].appendNode('extsql')
				}

				excel.sheet[0].extsql[0].appendNode('SQL', [
					sql:toStringUtil(extsql.@sql)
				],)
			}
		}

        def outFolder = new File(".", "gen-out");
        outFolder.deleteDir();
        outFolder.list().each { println it }

        outFolder.mkdirs();

        // 输出， 每个excel配置写一个文件
        excels.each{
            def newRootNode = new XmlParser().parseText('<excelimport />')
            newRootNode.append(it);

            def excelPartFile = new File(outFolder, it.@name + "_" + it.@apptype + "_ExcelImportConifg.xml")
            def writer = new PrintWriter(excelPartFile, "UTF8")
            writer.write('<?xml version="1.0" encoding="UTF-8"?>\n\n');
            new XmlPrinter(writer).print(newRootNode)
        }


        // new XmlNodePrinter(new PrintWriter(System.out)).print(root)
    }
    
    static main(args){
        new XSLTtransform().execute();
    }
}

/**
 * 属性值为null或者空字符串不打印
 *
 * @author LFQ
 *
 */
class XmlPrinter extends XmlNodePrinter{

    public XmlPrinter(PrintWriter out) {
        super(out);
    }

    protected void printNameAttributes(Map attributes, NamespaceContext ctx) {
        if (attributes == null || attributes.isEmpty()) {
            return;
        }
        for (Object p : attributes.entrySet()) {
            Map.Entry entry = (Map.Entry) p;
            Object value = entry.getValue();
            if(value == null || value.isEmpty()){
                continue;
            }
            out.print(" ");
            out.print(getName(entry.getKey()));
            out.print("=");
            out.print(quote);
            if (value instanceof String) {
                printEscaped((String) value, true);
            } else {
                printEscaped(InvokerHelper.toString(value), true);
            }
            out.print(quote);
            printNamespace(entry.getKey(), ctx);
        }
    }

    private String getName(Object object) {
        return super.getName(object);
    }

    private void printEscaped(String s, boolean isAttributeValue) {
        super.printEscaped(s, isAttributeValue);
    }
}