本文主要为大家分享了Ajax获取显示Json数据的一种方法，供大家参考，具体内容如下
1、首先前台用Ajax，其中注意dataType一定要选择json方式，Action成功返回给页面的Json内容是这样的[{"number":"V006","names":"LiLei"}],可见comment['names']对应"names":"LiLei"，comment['number']对应"number":"V006"。
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$.ajax({ type: "post", url:'apply/mystudent.action?', cache: false, dataType : "json", success: function(data){ $.each(data, function(commentIndex, comment){ alert("姓名"+ comment['names']); alert("学号"+comment['number']); }); } }); |
2、Ajax的URL指向在java的action中mystudent方法，返回的list其实是一个对象Student，包括了names和nunmber字段
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public String mystudent() throws Exception{ List list=priceService.query();//调用接口实现类 this.jsonUtil(list); return null; } |
3、action页面专门写一个方法jsonUtil来做为json方法
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// 调用json工具方法，传入参数alistpublic void jsonUtil(Object accountlist) throws Exception {HttpServletResponse response = ServletActionContext.getResponse();log.info("JSON格式：" + accountlist.toString());String returnJson = JsonConvert.returnJson(accountlist);response.setCharacterEncoding("utf-8");response.getWriter().println(returnJson);} |
4、我用的是一种比较新的json包jackson
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import java.io.StringWriter;import org.codehaus.jackson.map.ObjectMapper;public class JsonConvert { static String jsonStr; public static String returnJson(Object object) throws Exception{ ObjectMapper objectMapper = new ObjectMapper(); StringWriter stringWriter = new StringWriter(); objectMapper.writeValue(stringWriter, object); jsonStr = stringWriter.toString(); return jsonStr; }} |
以上就是本文的全部内容，希望对大家的学习有所帮助。
