jQuery 如何在javascript中获取spring mvc控制器模型键值？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/16206754/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How to get spring mvc controller model key value inside javascript?
提问by Dheeraj Varne
I am using a spring mvc controller. Inside controller i am putting some value lets say string inside model. Now i would like to retrive that value or lets just say print that value inside a javascript. How do i do it? Here is my controller class. I am adding "movie" as key. Now i want to display that name of the movie inside java script (Not inside JSP. However Inside JavaScript)
我正在使用 spring mvc 控制器。在控制器内部，我在模型中放置了一些值让我们说字符串。现在我想检索该值，或者只是说在 javascript 中打印该值。我该怎么做？这是我的控制器类。我正在添加“电影”作为关键。现在我想在 java 脚本中显示电影的名称（不在 JSP 中。但是在 JavaScript 中）
@Controller
@RequestMapping("/movie")
public class MovieController {
@RequestMapping(value="/{name}", method = RequestMethod.GET)
public String getMovie(@PathVariable String name, ModelMap model) {
model.addAttribute("movie", name);
return "list";
}
}
here is my JSP
这是我的 JSP
<html>
<head>
//I want to print movie name inside java script not inside jSP body tag.
<script type="text/javascript">
var movie_name = ${movie};
alert("movies name"+ movie_name);
</script>
</head>
<body>
<h3>Movie Name : ${movie}</h3>//When i print here its working fine.
</body>
</html>
回答by Ian
Use this:
用这个：
var movie_name = "${movie}";
instead of:
代替：
var movie_name = ${movie};
When using ${movie}, the value gets placed on the page without quotes. Since I'm guessing it's a string, Javascript requires strings be surrounded by quotes.
使用时${movie}，该值被放置在没有引号的页面上。因为我猜它是一个字符串，Javascript 要求字符串用引号括起来。
If you checked your browser's console, you probably would've seen an error like Unexpected identifieror ___ is not defined.
如果您检查浏览器的控制台，您可能会看到类似Unexpected identifier或的错误___ is not defined。
回答by Arun
Try this...
尝试这个...
If you had added the object into the model as:
如果您已将对象添加到模型中：
model.addAttribute("someObject", new Login("uname","pass"))
Then you get the properties of the model object as
然后你得到模型对象的属性
var user_name = ${someObject.uname}; // This is assuming that the Login class has getter as getUname();
var user_pass = ${someObject.pass};
