$user = array(
"firstname" => "myname",
"lastname" => "surname",
"phone" => array(
"home" => "123213213213",
"office" => "312321321312312",
"mobile" => "4532134213131312"
)
)
在java中有没有办法做到这一点?
谢谢!
答案 0 :(得分:2)
有几种方法可以让它更接近,但没有那么方便。
示例1:
SELECT *
INTO #tmp_Dates
FROM [fn_Get_ates](@Date)
更新示例:
Map<String, Object> user = new HashMap<String, Object>() {
{
put("firstname", "myname");
put("lastname", "surname");
put("phone", new HashMap<String, String>() {
{
put("home", "123213213213");
put("office", "312321321312312");
put("mobile", "4532134213131312");
}
});
}
};
添加另一张地图:
((Map)user.get("phone")).put("mobile2", "123");
(或许可以通过使用putIfAbsent方法或合并方法来改进)
打印当前内容:
user.put("address", new HashMap<String, Object>());
给出:
System.out.println(user);
答案 1 :(得分:1)
您可以使用Java中的JSON API以您喜欢的格式创建对象。以下是JSON API的文档
http://www.oracle.com/technetwork/articles/java/json-1973242.html
示例:
String stringToParse = "{" +
"firstname: \"myname\"," +
"lastname: \"surname\"," +
"phone: [ " +
" { home: \"123213213213\" }, " +
" { office: \"312321321312312\" }," +
" { mobile: \"4532134213131312\" }" +
"]" +
"}";
JSONParser parser = new JSONParser();
JSONObject json = (JSONObject) parser.parse(stringToParse);
答案 2 :(得分:1)
例如,您可以使用以下代码:
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<!-- bean definitions here -->
</beans>
答案 3 :(得分:0)
可能&#34;可能&#34;但我认为这不是一个好习惯(除非我不知道另一种方式)。我相信这会奏效:
use std::ops::Add;
use std::borrow::Borrow;
#[derive(Clone, Debug)]
struct Point {
x: i32,
y: i32,
}
impl<T: Borrow<Point>> Add<T> for Point {
type Output = Point;
fn add(self, other: T) -> Point {
Point { x: self.x + other.borrow().x, y: self.y + other.borrow().y }
}
}
fn main() {
let p1 = Point { x: 1, y: 0 };
let p2 = Point { x: 2, y: 3 };
let p4 = p1.clone() + &p2;
let p3 = p1 + p2;
println!("{:?}", p3);
println!("{:?}", p4);
}
我认为你必须使用List对象类型而不是HashMap的数组数据类型。如果我这样做,我可能会创建自己的类来处理这种情况。