Groovy - 使用带有动态路径的XmlSlurper [英] Groovy - Use XmlSlurper with a dynamic path

问题描述

例如：给定xml：

可以使用任意路径访问Xml的节点吗？

 <记录> 
< bike name ='Chopper'/> 
< car name ='HSV Maloo'make ='Holden'year ='2006'> 
< country>澳大利亚< / country> 
< record type ='speed'>速度为271kph的生产卡车< / record> 
< / car> 
< car name ='P50'make ='Peel'year ='1962'> 
< country>马恩岛< / country> 
< record type ='size'> 99厘米宽，59公斤重的最小街车法< / record> 
< / car> 
< / records> 
  

如何使用以字符串形式提供的任意路径访问xml的内容 - 例如：

$ p $ XmlSlurper xml = new XmlSlurper.parse（theXml）
assert xml ['bike。@ name'] = ='Chopper'
assert xml ['car [0] .country'] =='Australia'


解决方案

一种方法是使用 Eval.x 静态方法来评估一个字符串;

  def xml ='''| <记录> 
 | < bike name ='Chopper'/> 
 | < car name ='HSV Maloo'make ='Holden'year ='2006'> 
 | <国家>澳大利亚和LT; /国家> 
 | < record type ='speed'>速度为271kph的生产卡车 | < /车> 
 | < car name ='P50'make ='Peel'year ='1962'> 
 | < country>马恩岛< / country> 
 | < record type ='size'> 99厘米宽，59公斤重的最小街车法< / record> 
 | < /车> 
 | < / records>'''。stripMargin（）
 
 //使我们的GPathResult 
 def slurper = new XmlSlurper（）。parseText（xml）
 
 / /定义我们的测试
 def tests = [
 [query：'bike。@ name'，expected：'Chopper']，
 [query：'car [0] .country'，expected ：'澳大利亚'] 
] 
 
 //对于每个测试
 tests.each {test  - > 
 //断言我们得到预期的结果
 assert Eval.x（slurper，x。$ test.query）== test.expected 
} 
  

Is it possible to access a node of Xml using an arbitary path?

Eg: Given the xml:

    <records>
      <bike name='Chopper' />
      <car name='HSV Maloo' make='Holden' year='2006'>
        <country>Australia</country>
        <record type='speed'>Production Pickup Truck with speed of 271kph</record>
      </car>
      <car name='P50' make='Peel' year='1962'>
        <country>Isle of Man</country>
        <record type='size'>Smallest Street-Legal Car at 99cm wide and 59 kg in weight</record>
      </car>
    </records>

How do I access the contents of the xml using an arbitrary path, provided as a string -- eg:

XmlSlurper xml = new XmlSlurper.parse(theXml)
assert xml['bike.@name'] == 'Chopper'
assert xml['car[0].country'] == 'Australia'

解决方案

One method is to use the Eval.x static method to evaluate a String;

def xml = '''|    <records>
             |      <bike name='Chopper' />
             |      <car name='HSV Maloo' make='Holden' year='2006'>
             |        <country>Australia</country>
             |        <record type='speed'>Production Pickup Truck with speed of 271kph</record>
             |      </car>
             |      <car name='P50' make='Peel' year='1962'>
             |        <country>Isle of Man</country>
             |        <record type='size'>Smallest Street-Legal Car at 99cm wide and 59 kg in weight</record>
             |      </car>
             |    </records>'''.stripMargin()

// Make our GPathResult    
def slurper = new XmlSlurper().parseText( xml )

// Define our tests
def tests = [
  [ query:'bike.@name',     expected:'Chopper' ],
  [ query:'car[0].country', expected:'Australia' ]
]

// For each test
tests.each { test ->
  // assert that we get the expected result
  assert Eval.x( slurper, "x.$test.query" ) == test.expected
}

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