mirror of
https://github.com/kaka111222333/kaka111222333.github.io.git
synced 2025-12-19 16:25:12 +08:00
48 lines
1.1 KiB
Markdown
48 lines
1.1 KiB
Markdown
---
|
||
layout: post
|
||
title: Java中用js解析json
|
||
tags: ScriptEngineManager Java javascript
|
||
categories: java
|
||
published: java
|
||
---
|
||
|
||
在java中如何解析json？fastjson？jackson？那未免太无趣了
|
||
|
||
其实我们可以试试ScriptEngine
|
||
|
||
~~~java
|
||
public class NashornTest {
|
||
|
||
private static String json = "[{name:'A',age:'18'},{name:'B',age:'19'},{name:'C',age:'30'}]";
|
||
|
||
private static String script =
|
||
"function parse(json){" +
|
||
" var names = new Array();" +
|
||
" for(var i in json){" +
|
||
" names.push(json[i].name);" +
|
||
" }" +
|
||
" return names;" +
|
||
"};" +
|
||
"parse(" + json + ");";
|
||
|
||
public static void main(String[] args) throws ScriptException {
|
||
ScriptEngineManager manager = new ScriptEngineManager();
|
||
ScriptEngine engine = manager.getEngineByName( "JavaScript" );
|
||
|
||
Map<String,String> result = (Map<String,String>)engine.eval(script);
|
||
result.forEach((k,v) -> System.out.println(v));
|
||
}
|
||
}
|
||
~~~
|
||
|
||
输出:
|
||
|
||
A
|
||
|
||
B
|
||
|
||
C
|
||
|
||
> 代码中使用了 [lambda](http://blog.rainynight.top/2014-12-13/java-newfeature/# lambda)
|
||
|