1. encode
def str = URLEncoder.encode 'a b中国', 'UTF-8';
2.decode
def original = URLDecoder.decode str ,'UTF-8';
3. 定义
def groovyBook = new BookBean()
groovyBook.title = 'Groovy conquers the world'
4. Grab
@Grab('commons-lang:commons-lang:2.4')
import org.apache.commons.lang.ClassUtils5. list
def roman = ['', 'I', 'II', 'III', 'IV', 'V', 'VI', 'VII']
assert roman[4] == 'IV'
roman[8] = 'VIII'
assert roman.size() == 9
List longList = (0..1000).toList()
myList = ['a','b','c','d','e','f']
assert myList[0..2] == ['a','b','c']
assert myList[0,2,4] == ['a','c','e']
myList[0..2] = ['x','y','z']
assert myList == ['x','y','z','d','e','f']
myList[3..5] = []
assert myList == ['x','y','z']
myList[1..1] = [0, 1, 2]
assert myList == ['x', 0, 1, 2, 'z']
def list = [1, 2, 3]
assert list.first() == 1
assert list.head() == 1
assert list.tail() == [2, 3]
assert list.last() == 3
assert list.count(2) == 1
assert list.max() == 3
assert list.min() == 1
def even = list.find { item ->
item % 2 == 0
}
6. map
def http = [
100 : 'CONTINUE',
200 : 'OK',
400 : 'BAD REQUEST'
]
assert http[200] == 'OK'
http[500] = 'INTERNAL SERVER ERROR'
assert http.size() == 4
7. ranges
def x = 1..10
assert x.contains(5)
assert !x.contains(15)
assert x.size() == 10
assert x.from == 1
assert x.to == 10
assert x.reverse() == 10..1
8. upto
def totalClinks = 0
def partyPeople = 100
1.upto(partyPeople) { guestNumber ->
clinksWithGuest = guestNumber-1
totalClinks += clinksWithGuest
}
9. for in
def list = [1,2,3,4,5]
for(i in list){
print i
}
10. 容器size
Type Determine the size in JDK via ... Groovy
Array length field size() method
Array java.lang.reflect.Array.getLength(array) size() method
String length() method size() method
StringBuffer length() method size() method
Collection size() method size() method
Map size() method size() method
File length() method size() method
Matcher groupCount() method size() method
11. operators
