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JAVA生成json格式的數(shù)據(jù)， 這里使用import org.json.JSONObject;

先加載所需要的jar包

json.zip

response.setContentType("text/html;charset=UTF-8");
	    PrintWriter out = response.getWriter();
		JSONObject jsonObject =  new JSONObject();
		jsonObject.put("names","莊子");
		jsonObject.put("sex", "男");
		String[] hobby = {"游泳","打籃球"};
		jsonObject.put("hobbies", Arrays.asList(hobby)); //添加數(shù)組
		HashMap<String,Integer> map = new HashMap<String,Integer>();
		map.put("eng",100);
		map.put("math",99);
		map.put("chinese",98);
		jsonObject.put("score", map);
		System.out.println(jsonObject);//添加HashMap對象
		out.println(jsonObject);

顯示結(jié)果如下：

{"score":{"chinese":98,"math":99,"eng":100},"names":"莊子","hobbies":["游泳","打籃球"],"sex":"男"}

解析結(jié)果如下：

AJAX請求結(jié)果如下：

方法二：加載阿里的fastjson2包

fastjson2-2.0.12.graal.zip

HashMap<String, Object> hm = new HashMap<>();
        hm.put("name","小強");
        hm.put("sex","男");
        String[] h = {"牛奶","香蕉"};
        hm.put("h",h);
String json = JSON.toJSONString(hm);
        response.getWriter().println(json);