报错 Request method 'GET' not supported

$(function(){
	var listUrl = '/o2o/productadmin/getproductcategorylist';
	var addUrl = '/o2o/productadmin/addproductcategorys';
	getList();
	
	function getList(){
		$.getJSON(
			listUrl,
			function(data){
				console.log(data.data);
				if(data.success){
					var datalist = data.data;
					
					$('.product-category-wrap').html('');
					var temphtml='';
					datalist.map(function (item,index){
						temphtml += '<div class="row row-product-category now">'
						+'<div class="col-33 product-category-name">'
						+ item.productCategoryName
						+'</div>'
						+'<div class="col-33">'
						+item.priority
						+'</div><div class="col-33" ><a href="#" class="button delete" data-id="'
						+item.productCategoryId
						+'">删除</a></div>'
						+'</div>';
			
						
					});
					$('.product-category-wrap').append(temphtml);
				}
			}
		);
	}


    // 新增添加的输入项
    $('#new').click(function () {
        var tempHTML = '<div class="row row-product-category temp"><div class="col-33">' +
                       '<input class="category-input category" type="text" placeholder="分类名"></div>' +
                       '<div class="col-33"><input class="category-input priority" type="number" placeholder="优先级"></div>' +
                       '<div class="col-33"><a href="#" class="button delete">删除</a></div></div>';
        // 追加
        $('.product-category-wrap').append(tempHTML);
    });

$('#submit').click(function(){
	var tempArr = $('.temp');
	var productCategoryList = [];
	tempArr.map(function(item,index){
		var tempObj = {};
		tempObj.productCategoryName = $(index).find('.category').val();
		tempObj.priority = $(index).find('.priority').val();
		if(tempObj.productCategoryName != null && tempObj.priority != null){
			productCategoryList.push(tempObj);
		}
	});
	console.log(JSON.stringify(productCategoryList));
	$.ajax({
		url:addUrl,
		type:'POST',
		date:JSON.stringify(productCategoryList),
		contentType:'application/json;character:utf-8',
		success:function(data){
			if(data.success){
				$.toast('提交成功');
				getList();
			}else{
				$.toast('提交失败');
			}
		}
	});
});

});

package com.myk.o2o.web.productadmin;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;

import com.myk.o2o.dto.ProductCategoryExecution;
import com.myk.o2o.dto.Result;
import com.myk.o2o.entity.ProductCategory;
import com.myk.o2o.entity.Shop;
import com.myk.o2o.enums.ProductCategoryStateEnum;
import com.myk.o2o.exceptions.ProductCategoryOperationException;
import com.myk.o2o.service.ProductCategoryService;
import com.myk.o2o.util.HttpServletRequestUtil;

@Controller
@RequestMapping("/productadmin")
public class ProductManagentController {
	
	@Autowired
	private ProductCategoryService productCategoryService;
	
	@RequestMapping(value="/getproductcategorylist",method=RequestMethod.GET)
	@ResponseBody
	private Result<List<ProductCategory>> getProductCategoryList(HttpServletRequest request){
		Shop shop = (Shop) request.getSession().getAttribute("currentShop");
		List<ProductCategory> list = new ArrayList<ProductCategory>();
		if (shop != null && shop.getShopId() > 0) {
			list = productCategoryService.getProductCategoryList(shop.getShopId());
			return new Result<List<ProductCategory>>(true,list);
		}else {
			ProductCategoryStateEnum ps = ProductCategoryStateEnum.INNER_ERROR;
			return new Result<List<ProductCategory>>(false,ps.getState(),ps.getStateInfo());
		}
	}
	
	@RequestMapping(value="/addproductcategorys",method=RequestMethod.POST,produces = "application/json;character:utf-8")
	@ResponseBody
	private Map<String ,Object> addProductCategorys(@RequestBody List<ProductCategory> productCategoryList,HttpServletRequest request){
		Map<String ,Object> modelMap = new HashMap<String, Object>();
		Shop currentShop = (Shop) request.getSession().getAttribute("currentShop");
		System.out.println(productCategoryList.size());
		for (ProductCategory productCategory : productCategoryList) {
			productCategory.setShopId(currentShop.getShopId());
		}
		if (productCategoryList != null && productCategoryList.size() >0) {
			try {
				ProductCategoryExecution pe = productCategoryService.batchAddProductCategory(productCategoryList);
				if (pe.getState()  == ProductCategoryStateEnum.SUCCESS.getState()) {
					modelMap.put("success", true);
				}else {
					modelMap.put("success", false);
					modelMap.put("errMsg",pe.getStateInfo());
				}
			}catch (ProductCategoryOperationException e) {
				modelMap.put("success", false);
				modelMap.put("errMsg", e.toString());
				return modelMap;
			}
		}else {
			modelMap.put("success", false);
			modelMap.put("errMsg", "请至少输入一个商品类别");
		}
		return modelMap;
	}
}