如何从Java控制器中的Ext.Ajax.request获取参数

Question

I am having one problem in retrieving the parameter which i am passing using Ext.Ajax.request to my JAVA controller class.

I am sending request to my controller using below code

Ext.Ajax.request({
             url : 'projecttask/GetprojectTasks.action',
             method: 'POST',
             jsonData: {
                sampledata: record.data
            },
            type: 'json',
            scope: this, // add the scope as the controller
             callback : function(options, success, response) {
                console.log('RESPONSE FROM SERVER :'+response);
             }
           });

my java controller method to receive the request is

@RequestMapping(value="/projecttask/GetprojectTasks.action")
    public @ResponseBody Map<String, ? extends Object> getprojectTasks(HttpServletRequest request,
            HttpServletResponse response,@RequestBody Project project) throws Exception {
        try {
            System.out.println("PROJECT ::"+project);
            System.out.println("RPOJECT DATA ::"+request.getParameter("sampledata"));
            Object data = request.getParameter("sampledata");
            Project prj = (Project) data;
            System.out.println("CREATE TASK DATA IS ::"+prj.getProjectid());            
            return null;            
        }catch(Exception e) {
            return getModelMapError("Error trying to create contact");
        }
    }

but it gives me error mentioned below

org.codehaus.jackson.map.JsonMappingException: Unrecognized field "sampledata" (Class com.kintu.projectmgt.model.Project), not marked as ignorable

so what i am doing wrong which not allowed my function to get sampledata passed as parameters. How can i get my Parameters passed value any idea ?

My firebug shows that sampledata contains all values. Please help me to find the problem and solve it as soon as possible.

I am using Ext JS 4.0.2a and JAVA as my serverside technology.

Answer 1

you can use

String postParamsJSON = request.getReader().readLine();

to get the POST data.