java - Send javascript variables to spring controller - Stack Overflow

admin管理员组

文章数量:1324807

I'm trying to develop simple application using spring mvc and I need to pass javascript parameters to spring controller. I have tried several methods and none of them were worked. Following is my javascript and spring controller. Please help me to sort this issue.

Java script

function searchViaAjax(id) {
    alert(id);
    $.ajax({
        type : "POST",
        contentType : "application/json",
        url : "search/api/getSearchResult",
        data : JSON.stringify(id),
        dataType : 'json',
        timeout : 100000,
        success : function(id) {
            console.log("SUCCESS: ", id);
            display(id);
            alert(response);   
        },
        error : function(e) {
            console.log("ERROR: ", e);
            display(e);
        },
        done : function(e) {
            console.log("DONE");
        }
    });
}

AjaxController.java

@Controller
public class AjaxController {
    @ResponseBody
    @RequestMapping(value = "/search/api/getSearchResult")

    public String getSearchResultViaAjax(@RequestParam(value = "id") int id) {
        System.out.println("e to ajax"+ id);
        return "hello";

    }
}

I'm trying to develop simple application using spring mvc and I need to pass javascript parameters to spring controller. I have tried several methods and none of them were worked. Following is my javascript and spring controller. Please help me to sort this issue.

Java script

function searchViaAjax(id) {
    alert(id);
    $.ajax({
        type : "POST",
        contentType : "application/json",
        url : "search/api/getSearchResult",
        data : JSON.stringify(id),
        dataType : 'json',
        timeout : 100000,
        success : function(id) {
            console.log("SUCCESS: ", id);
            display(id);
            alert(response);   
        },
        error : function(e) {
            console.log("ERROR: ", e);
            display(e);
        },
        done : function(e) {
            console.log("DONE");
        }
    });
}

AjaxController.java

@Controller
public class AjaxController {
    @ResponseBody
    @RequestMapping(value = "/search/api/getSearchResult")

    public String getSearchResultViaAjax(@RequestParam(value = "id") int id) {
        System.out.println("e to ajax"+ id);
        return "hello";

    }
}

• javascript
• java
• spring
• spring-mvc

Share Improve this question Follow asked Aug 21, 2017 at 7:05 dmaprasaddmaprasad 31144 gold badges77 silver badges1717 bronze badges 2

• data : JSON.stringify({ id: id }), – Ivan Minakov Commented Aug 21, 2017 at 7:10
• I tried in this way. But didn't work for me – dmaprasad Commented Aug 21, 2017 at 7:24

Add a ment  | 

3 Answers 3

Sorted by: Reset to default 3

When you pass json as requestbody then above call is applicable. To send request param you have to as below:

Use following ajax call:

function searchViaAjax(id) {
var tempId = id;
$.ajax({
    type : "POST",
    url : "/search/api/getSearchResult",
    data : {id:tempId},
    timeout : 100000,
    success : function(id) {
        console.log("SUCCESS: ", id);
        display(id);
        alert(response);   
    },
    error : function(e) {
        console.log("ERROR: ", e);
        display(e);
    },
    done : function(e) {
        console.log("DONE");
    }
});
}

also you can acheive this using get method as below:

 function searchViaAjax(id) { 
 $.ajax({ 
 type : "GET", 
 url : "/search/api/getSearchResult/"+id, 
 timeout : 100000, 
 success : function(id) { 
 console.log("SUCCESS: ", id); 
 display(id); 
 alert(response); 
}, 
error : function(e) { 
console.log("ERROR: ", e); 
display(e); 
}, 
done : function(e) { 
console.log("DONE"); 
} 
}); 
} 

@Controller 
public class AjaxController { 

@ResponseBody 
@RequestMapping(value = "/search/api/getSearchResult/{id}") 
public String getSearchResultViaAjax(@PathVariable(value = "id") Integer id) 
{ 
 return String.valueOf(id); 
} 
}

When you use JSON.stringify, you are actually sending a JSON object to your spring controller's method. All you have to do is wrap your json object as a java object like so.

public class UserId {

    private int id;

    // setters and getters

}

And in your controller's method use @RequestBody to map your JSON to your UserId class like so

@ResponseBody
@RequestMapping(value = "/search/api/getSearchResult", method = RequestMethod.POST)
public String getSearchResultViaAjax(@RequestBody UserId user) {
    System.out.println("e to ajax" + user.getId());
    return "hello";
}

PS: Haven't tested it but should work.

It is a post request you are making from your ajax to controller. You are missing "methodType=RequestMethod.POST" on your spring controller.

Replace @RequestMapping(value = "/search/api/getSearchResult") with

@RequestMapping(value = "/search/api/getSearchResult", methodType=RequestMethod.POST)

本文标签： javaSend javascript variables to spring controllerStack Overflow