1、book.xml文件結構
<?xml version="1.0" encoding="UTF-8" ?>
<Books>
<Book id="1">
<title>Kotlin入門到實戰</title>
<author>周伯通</author>
</Book>
<Book id="2">
<title>Groovy入門到實戰</title>
<author>楊過</author>
</Book>
<Book id="3">
<title>Scala入門到實戰</title>
<author>小龍女</author>
</Book>
<Book id="4">
<title>Java入門到實戰</title>
<author>郭靖</author>
</Book>
<Book id="5">
<title>Swift入門到精通</title>
<author>洪七公</author>
</Book>
</Books>
2、代碼實現
- 此代碼可以創建一個XmlTest類即可，Books與Book都是在XmlTest類，此類爲了方便閱讀，不創建多個類進行實現，由於代碼較少。這裏提供了2種創建xml的實現，與一種解析xml的實現
package com.groovy.domain
import groovy.xml.MarkupBuilder
import groovy.xml.XmlSlurper
import org.junit.Test
//Books對象
class Books {
int count = 5
def books = [
new Book(id: System.currentTimeMillis(),title: "Kotlin入門到實戰", author: "周伯通"),
new Book(id: System.currentTimeMillis(),title: "Swift入門到實戰", author: "楊過"),
new Book(id: System.currentTimeMillis(),title: "Groovy入門到實戰", author: "小龍女"),
new Book(id: System.currentTimeMillis(),title: "Scala入門到實戰", author: "郭靖"),
new Book(id: System.currentTimeMillis(),title: "Java入門到實戰", author: "瑛姑")
]
}
//Book對象
class Book {
Long id
String title
String author
}
class XmlTest {
@Test
void createXmlObject() {
def sw = new StringWriter()
def markupBuilder = new MarkupBuilder(sw)
def books = new Books()
//創建一個Books節點
markupBuilder.Books(count: books.count) {
//獲取books數據進行遍歷
books.books.forEach { book ->
//獲取book數據，創建一個Book節點
Book(id:book.id,title: book.title, author: book.author)
}
}
println(sw)
}
@Test
void createXml() {
def sw = new StringWriter()
def markupBuilder = new MarkupBuilder(sw)
//對Books節點添加一個count屬性值爲5
markupBuilder.Books(count: 5) {
//在Books創建Book節點,並且給一個id爲1的值
//在book節點下創建title與author節點
Book(id: 1) {
title("Kotlin入門到實戰")
author("周伯通")
}
Book(id: 2) {
title("Java入門到實戰")
author("楊過")
}
Book(id: 3) {
title("Groovy入門到實戰")
author("小龍女")
}
Book(id: 4) {
title("Scala入門到實戰")
author("瑛姑")
}
Book(id: 5) {
title("Swift入門到實戰")
author("郭靖")
}
}
println(sw)
}
@Test
void parseXml() {
//獲取xml文件路徑
def path = XmlTest.class.getClassLoader().getResource("book.xml").path
//指定文件路徑，指定解析編碼進行獲內容信息
def content = new File(path).getText("utf-8")
//創建XmlSlurper對象
def xmlSlurper = new XmlSlurper()
//解析內容信息，獲取book節點
def books = xmlSlurper.parseText(content)
// println(books.Book[0].@id)
//獲取多個Book節點
books.Book.forEach { book ->
//使用GPathResult節點路徑去獲取id值
println("Id=${book.@id},書名稱=${book.title},書作者=${book.author}")
}
}
}
3、createXmlObject方法運行的結果
<Books count='5'>
<Book id='1638084704535' title='Kotlin入門到實戰' author='周伯通' />
<Book id='1638084704559' title='Swift入門到實戰' author='楊過' />
<Book id='1638084704559' title='Groovy入門到實戰' author='小龍女' />
<Book id='1638084704560' title='Scala入門到實戰' author='郭靖' />
<Book id='1638084704560' title='Java入門到實戰' author='瑛姑' />
</Books>
4、createXml方法運行的結果
<Books count='5'>
<Book id='1'>
<title>Kotlin入門到實戰</title>
<author>周伯通</author>
</Book>
<Book id='2'>
<title>Java入門到實戰</title>
<author>楊過</author>
</Book>
<Book id='3'>
<title>Groovy入門到實戰</title>
<author>小龍女</author>
</Book>
<Book id='4'>
<title>Scala入門到實戰</title>
<author>瑛姑</author>
</Book>
<Book id='5'>
<title>Swift入門到實戰</title>
<author>郭靖</author>
</Book>
</Books>
5、parseXml方法運行的結果
Id=1,書名稱=Kotlin入門到實戰,書作者=周伯通
Id=2,書名稱=Groovy入門到實戰,書作者=楊過
Id=3,書名稱=Scala入門到實戰,書作者=小龍女
Id=4,書名稱=Java入門到實戰,書作者=郭靖
Id=5,書名稱=Swift入門到精通,書作者=洪七公
