创建xml

/**
 * 生成xml格式数据
 * <langs type='current' count='3'>
 *     <language flavor='static' version='1.5'>Java</language>
 *     <language flavor='dynamic' version='1.6'>Groovy</language>
 *     <language flavor='dynamic' version='1.8'>javascript</language>
 * </langs>
 */
def sw = new StringWriter()
def xmlBuilder = new MarkupBuilder(sw) //用来生成xml数据的核心类
//根结点langs创建成功
xmlBuilder.langs(type: 'current', count: '3') {
    //第一个language结点
    language(flavor: 'static', version: '1.5') { age(28)}
    language(flavor: 'dynamic', version: '1.6', "Groovy")
    language(flavor: 'dynamic', version: '1.8', "javascript")
}

println sw

String rs = '''
<langs type='current' count='3'>
  <language flavor='static' version='1.5'>
    <age>28</age>
  </language>
  <language flavor='dynamic' version='1.6'>Groovy</language>
  <language flavor='dynamic' version='1.8'>javascript</language>
</langs>
'''

/**
 * 生成xml格式数据
 * <langs type='current' count='3'>
 *     <language flavor='static' version='1.5'>Java</language>
 *     <language flavor='dynamic' version='1.6'>Groovy</language>
 *     <language flavor='dynamic' version='1.8'>javascript</language>
 * </langs>
 */
def sw = new StringWriter()
def xmlBuilder = new MarkupBuilder(sw) //用来生成xml数据的核心类
def langs = new Langs()
xmlBuilder.langs(type: langs.type, count: langs.count) {
    //遍历所有子结点
    langs.languages.each {
        la -> language(flavor: la.flavor, version: la.flavor, la.value)
    }
}

println sw

class Langs {
    String type = 'current'
    String count = '3'
    def languages = [
            new Language(flavor: 'static', version: '1.5', value: 'java'),
            new Language(flavor: 'dynamic', version: '1.6', value: 'Groovy'),
            new Language(flavor: 'dynamic', version: '1.8', value: 'javascript')
    ]
}
//对应xml的language节点
class Language {
    String flavor
    String version
    String value
}