jquery ajax + struts2用例

ajax

                                    var url = '/itsm/contract/contract!deleteShopItemById.action';
                                    var shopItemId= selectRows[x].data.id;
                                    $j.ajax({
                                        url:url,
                                        cache:false,
                                        data:{
                                            shopItemId: shopItemId
                                        },
                                        type:'post',
                                        async:false,
                                        success:function(a){
                                                var data = eval('('+a+')');
                                                console.log(data);
                                                if(data.code == 200){
                                                    Ext.Msg.alert("提示",data.msg);
                                                    jsonstore_cg.remove(selectRows[x]);
                                                } else {
                                                    Ext.Msg.alert("提示","删除失败!");
                                                }
                                        }
                                    });

struts2

private String[] shopItemId;

public String[] getShopItemId() {
        return shopItemId;
    }

public void setShopItemId(String[] shopItemId) {
        this.shopItemId = shopItemId;
    }

public String deleteShopItemById(){
        ContractCmdbSupport ccs = new ContractCmdbSupport();
        ccs.deleteInstanceByIds(shopItemId, true);
        String response="{code:200,msg:'删除成功!'}";
        responseStr(response);
        return NONE;
    }

public HttpServletResponse getResponse() {
        return ServletActionContext.getResponse();
    }
    
public void responseStr(String message){
        getResponse().setContentType("text/html; charset=UTF-8");
        try {
            getResponse().getWriter().println(message);
            getResponse().getWriter().flush();
        } catch (IOException e) {
            logger.error("action向页面传输json数据时发生错误。", e);
        }
    }