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使用ajax从后台向前台返回数据

来源:互联网 
1、FwpjAction.java源码
/**     * 保存评价信息     *      * @param response     * @param pjdxId     * @param pjzt     * @param pjjg     * @param ejpjjg     * @param pjztbs     * @throws Exception     */    @RequestMapping("/pro/fwpj/savePj.htm")//这里为什么要使用response呢?这里为什么没有modelandview    public void savePj(HttpServletResponse response, @RequestParam(value = "pjdxId") String pjdxId, @RequestParam(value = "pjzt") int pjzt,            @RequestParam(value = "pjjg") int pjjg, @RequestParam(value = "efpjjg") String ejpjjg,            @RequestParam(value = "pjztbs") String pjztbs) throws Exception {        Map<String, Object> data = new HashMap<String, Object>();        ProUser proUser = getProUser();        if (!validUser(pjdxId, pjzt)) {            data.put("success", false);            data.put("msg", "您无权访问");            this.writeAjaxObject(response, data);            return;        }        try {            fwpjService.savePj(pjdxId, pjzt, proUser, pjjg, ejpjjg, pjztbs);            data.put("success", true);            this.writeAjaxObject(response, data);        } catch (Exception e) {            logger.error("保存评价出错,参数:证件号码" + proUser.getZjhm() + "评价对象id" + pjdxId + "评价类型" + pjzt + e.getMessage(), e);            data.put("success", false);            data.put("msg", "保存失败");            this.writeAjaxObject(response, data);          }    }/**     * 保存评价信息     *   



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