EL expression in JS to obtain related element parameters

This time I will bring you the ELexpression in JSto obtain the relevant element parameters. What are theprecautionsfor the EL expression in JS to obtain the relevant element parameters. The following is a practical case. , let’s take a look.

1.actionReturn parameters to the page

/** * 测试js中获取后台传值 * @param model * @param req * @return String */ @RequestMapping("getValue") public String getValue(Model model, HttpServletRequest req){ model.addAttribute("stringValue", "测试在js中取值..."); model.addAttribute("numberValue", 111); List list = new ArrayList(); list.add("aaa"); list.add("bbb"); list.add("ccc"); model.addAttribute("arrayValue", list); model.addAttribute("jsonStringValue", JSON.toJSONString(list)); User user = new User(); user.setUserID("1"); user.setUserName("test"); user.setMobile("13800000000"); user.setEmail("test@163.com"); user.setNickName("test"); model.addAttribute("objJsonString", JSON.toJSONString(user)); return "/getValue.htm"; }

2. Use EL in js Expression to get the parameter value

Note:takes the numeric parameter value, and the EL expression in js does not need to be quoted; takeStringparameter values, EL expressions in js need to be quoted; object and collection type parameter values need to be converted using JSON.toJSONString() in the background.

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

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