node使用xml-writer生成本地XML文件实例

npm中xml-writer文档的链接地址：https://www.npmjs.com/package/xml-writer

npm中的文档比较简单，而且生成本地xml文件的demo并不正确。本篇是对以上文档的更正和补充。

 var XMLWriter = require('./node-modules/xml-writer');    // 导入xml-writer模块
 var fs = require('fs');    // 导入文件系统模块
 var appPath = process.execPath; // nw.exe进程所在目录
 console.log("appPath = " + appPath);
 var resourcePath = appPath.replace("nw.exe", "xml\\netdisk-user-cfg.xml");    // 将nw.exe进程所在目录改成生成xml文件的目录
 console.log("resourcePath = " + resourcePath);
 // 创建写入流
 var ws = fs.createWriteStream(resourcePath);

 // 同步读取文件内容，本段代码可不写，只是方便在console中查看
 ws.on('close', function() {
     console.log(fs.readFileSync(resourcePath,'UTF-8'));
 });

 xw = new XMLWriter(true, function(string, encoding) { // 第一个参数选择true会自动排版；false不会自动排版
         ws.write(string, encoding);
 });

 xw.startDocument('1.0', 'UTF-8').startElement(function() {
     return 'USER_INFOS';
 }).writeElement('INUSE_USERID', '1001')
     .writeElement('INUSE_TOKENID', 'asdfasdf123123asdfasdf')
     .writeElement('INUSE_IP', '172.16.100.7')
     .writeElement('INUSE_PORT', '443')
     .startElement('USER_INFO')
         .writeElement('USERID', '1001')
         .startElement('DISK_CFG_INFOS')
             .startElement('DISK_CFG_INFO')
                 .writeElement('DISK_CFG_NET_ROOT_ID', '1')
                 .writeElement('DISK_CFG_NET_ROOT_NAME','NAS存储')
                 .startElement('DISK_CFG_INFOS_UP')
                     .startElement('DISK_CFG_INFO_UP')
                         .writeElement('UP_DIR_FROM','D:\\up1')
                         .writeElement('UP_DIR_TO_NAME','NAS存储\\up1')
                         .writeElement('UP_DIR_TO_ID','1\\101')
                         .writeElement('STATUS','0')
                     .endElement()
                 .endElement()
                 .startElement('DISK_CFG_INFOS_DOWN')
                     .startElement('DISK_CFG_INFO_DOWN')
                         .writeElement('DOWN_DIR_FROM_NAME','NAS存储\\down1')
                         .writeElement('DOWN_DIR_FROM_ID','1\\201')
                         .writeElement('DOWN_DIR_TO','D:\\down1')
                         .writeElement('STATUS','0')
                     .endElement()
                 .endElement()
             .endElement()
         .endElement()
     .endElement()
     .endElement();
 ws.end();

生成的xml文件：

<?xml version="1.0" encoding="UTF-8"?>
<USER_INFOS>
    <INUSE_USERID>1001</INUSE_USERID>
    <INUSE_TOKENID>asdfasdf123123asdfasdf</INUSE_TOKENID>
    <INUSE_IP>172.16.100.7</INUSE_IP>
    <INUSE_PORT>443</INUSE_PORT>
    <USER_INFO>
        <USERID>1001</USERID>
        <DISK_CFG_INFOS>
            <DISK_CFG_INFO>
                <DISK_CFG_NET_ROOT_ID>1</DISK_CFG_NET_ROOT_ID>
                <DISK_CFG_NET_ROOT_NAME>NAS存储</DISK_CFG_NET_ROOT_NAME>
                <DISK_CFG_INFOS_UP>
                    <DISK_CFG_INFO_UP>
                        <UP_DIR_FROM>D:\up1</UP_DIR_FROM>
                        <UP_DIR_TO_NAME>NAS存储\up1</UP_DIR_TO_NAME>
                        <UP_DIR_TO_ID>1\101</UP_DIR_TO_ID>
                        <STATUS>0</STATUS>
                    </DISK_CFG_INFO_UP>
                </DISK_CFG_INFOS_UP>
                <DISK_CFG_INFOS_DOWN>
                    <DISK_CFG_INFO_DOWN>
                        <DOWN_DIR_FROM_NAME>NAS存储\down1</DOWN_DIR_FROM_NAME>
                        <DOWN_DIR_FROM_ID>1\201</DOWN_DIR_FROM_ID>
                        <DOWN_DIR_TO>D:\down1</DOWN_DIR_TO>
                        <STATUS>0</STATUS>
                    </DISK_CFG_INFO_DOWN>
                </DISK_CFG_INFOS_DOWN>
            </DISK_CFG_INFO>
        </DISK_CFG_INFOS>
    </USER_INFO>
</USER_INFOS>