json数据转换 net.sf.json

chenyun19900528

于 2019-07-03 11:49:00 发布

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文章标签： json java

原文链接：https://my.oschina.net/gwlCode/blog/3068938

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    public void responseJson(Object obj, String[] excludes) throws IOException {
        // 返回json数据
        JsonConfig config = new JsonConfig();
        //排除不需要转成json的字段
        config.setExcludes(excludes);


        HttpServletResponse response = ServletActionContext.getResponse();
        response.setHeader("content-type", "text/json;charset=utf-8");
        if (obj instanceof Collection) {
            JSONArray jsonArray = JSONArray.fromObject(obj, config);
            response.getWriter().write(jsonArray.toString());
        } else {
            JSONObject jsonObject = JSONObject.fromObject(obj, config);
            response.getWriter().write(jsonObject.toString());
        }
    }

        //不要转 subareas 字段，否则会出现死循环
        // 错误类似 ： Caused by: org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: com.gwl.bos.model.Function.roles, could not initialize proxy - no Session
        responseJson(regions, new String[]{"roles"});

转载于:https://my.oschina.net/gwlCode/blog/3068938