ajax 请求controller

 <script type="text/javascript" src="/js/require.js" data-main="/js/main" defer async></script>


/**
 * Created by PL02053 on 2016/3/10.
 */
require.config({
    urlArgs: '_=' + (new Date()).getTime(),
    baseUrl: '/js/',
    paths: {
        'd3': 'd3.v3.min',
        'jquery': 'jquery',
        'json2': 'json2',
        'cookie': 'jquery/Cookies',
        'i18n': '../language/i18n'
    },
    waitSeconds: 0
});

require([
    "css!/css/ui/theme.css",
    "css!/css/ui/core.css",
    "css!/css/ui/button.css",
    "css!/css/ui/dialog.css",
    "css!/css/ui/menu.css",
    "css!/css/ui/tabs.css",
    "css!/css/index/tabs.css",
    "css!/css/index/index.css",
    "css!/css/index/core.css",
    "css!/css/zTree/zTreeStyle.css",
    "css!/css/index/info.css",
    "css!/css/table/ValidateForm.css",
    "css!/css/table/SelectDialog.css",
    //"css!/css/table/PageToolBar.css",
    "css!/css/table/GridTable.css",
    "css!/css/index/fileinput.css",
    "css!/css/widget/MultiSelect.css",
    "css!/js/widget/ExpandTable/css/default.css",
    "css!/css/ui/tooltip.css",
    'jquery'
], function () {
    (function ($) {
        require([
           /* 'i18n', 'json2', 'cookie', 'jquery/md5', 'd3',
            'jquery/mousewheel', 'jquery/resize', 'jquery/ui',
            'jquery/ui/dialog',
            'jquery/plugins/validate/validate',
            'jquery/plugins/WdatePicker/WdatePicker',
            'jquery/plugins/zTree/core',
            'jquery/plugins/echarts/echarts-all'*/
            'i18n', 'json2', 'cookie', 'jquery/md5', 'd3'
        ], function (i18n) {
            //获取设置sessionid
            $.ajax({
                type: "POST",
                url: "/groupParameter/getByIds",
                data: JSON.stringify({keys: ['systemLogo']}),
                async: false,
                dataType: "json",
                contentEncoding: "gzip",
                contentType: 'application/json',
                success: function (data) {
                    if (data.success) {
                        if (data.params && data.params.length > 0) {
                            Cookies.setSessionid(data.params[0]);
                        }
                    }
                }
            });
        });
    })(jQuery);
});


package controller;

import net.sf.json.JSONObject;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import javax.servlet.http.HttpServletResponse;
import java.util.HashMap;
import java.util.Map;
/**
 * Created by p00100 on 2017/3/27.
 */

@Controller
@RequestMapping("/groupParameter")
public class xxxController {
   @RequestMapping(method = RequestMethod.POST, value = "/getByIds")
   @ResponseBody
   public ReplyInfo getByIds(@RequestBody JSONObject body, HttpServletResponse response) {
        Map<String, Class<?>> typeMap = new HashMap<String, Class<?>>();
        typeMap.put("keys", String.class);
        ReplyInfo replyInfo = new ReplyInfo();
        return  replyInfo;
    }
}


package controller;

import java.io.Serializable;
import java.util.Arrays;

/**
 *
 *
 * @author Administrator
 */
public class ReplyInfo implements Serializable {
    private static final long serialVersionUID = 1L;
    private boolean success = true;
    private Object data = null;
    private String[] params;

    public ReplyInfo() {
        this.success = true;
    }

    public ReplyInfo(Object data) {
        this.success = false;
        this.data = data;
    }

    public ReplyInfo(Object data, String[] params) {
        this.success = false;
        this.data = data;
        this.params = params;
    }

    public ReplyInfo(boolean success, Object data) {
        this.success = success;
        this.data = data;
    }

    public ReplyInfo(boolean success, Object data, String[] params) {
        this.success = success;
        this.data = data;
        this.params = params;
    }

    public String[] getParams() {
        return params;
    }

    public void setParams(String[] params) {
        this.params = params;
    }

    public static long getSerialversionuid() {
        return serialVersionUID;
    }

    public boolean isSuccess() {
        return success;
    }

    public void setSuccess(boolean success) {
        this.success = success;
    }

    public Object getData() {
        return data;
    }

    public void setData(Object data) {
        this.data = data;
    }

    @Override
    public String toString() {
        return "ReplyInfo [success=" + success + ", data=" + data + ", params="
                + Arrays.toString(params) + "]";
    }

}


 <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>4.8.2</version>
        </dependency>

        <dependency>
            <groupId>servlet.api</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.5</version>
        </dependency>

        <dependency>
            <groupId>json.lib</groupId>
            <artifactId>json-lib</artifactId>
            <version>2.3</version>
        </dependency>