How to get spring mvc controller model key value i

2020-03-14 04:37发布

站内问答 / JavaScript
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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)

@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

<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>

2条回答
▲ chillily
2楼-- · 2020-03-14 04:56

Use this:

var movie_name = "${movie}";

instead of:

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.

If you checked your browser's console, you probably would've seen an error like Unexpected identifier or ___ is not defined.

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We Are One
3楼-- · 2020-03-14 05:06

Try this...

If you had added the object into the model as:

model.addAttribute("someObject", new Login("uname","pass"))

Then you get the properties of the model object as

var user_name = ${someObject.uname}; // This is assuming that the Login class has getter as getUname();
var user_pass = ${someObject.pass};
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