HttpServletRequest

对参数值的获取实际调的是org.apache.catalina.connector.Request没有提供对应的set方法修改属性所以不能对前端传来的参数进行修改实际场所像过滤xss攻击取认证token统一去除token前缀等需要进行请求参数的处理此时HttpServletRequestWrapper

就应运而生了。

应用了装饰模式.HttpServletRequestWrapper

采用装饰者模式对HttpServletRequest进行包装我们可以通过继承HttpServletRequestWrapper

类去重写getParameterValuesgetParameter等方法实际还是调用HttpServletRequest的相对应方法但是可以对方法的结果进行改装。

一般要和

Filter

--filterfilter-namedeviceIdParseFilter/filter-namefilter-classcom.xxxxxx.DeviceIdParseFilter/filter-classinit-paramparam-nameencoding/param-nameparam-valueUTF-8/param-value/init-paraminit-paramparam-nameforceEncoding/param-nameparam-valuetrue/param-value/init-param/filterfilter-mappingfilter-namedeviceIdParseFilter/filter-nameurl-pattern*.do/url-pattern/filter-mappingFilter

public

Logger.getLogger(DeviceIdParseFilter.class);private

static

request.getParameter(deviceId);if

(deviceId

parseDeviceId(deviceId);DeviceIdParseRequest

req

DeviceIdParseRequest((HttpServletRequest)

request,result[0],

DeviceIdParseRequest(HttpServletRequest

request)

DeviceIdParseRequest(HttpServletRequest

request,

super.getParameter(name);}}Overridepublic

String[]

super.getParameterValues(name);}}}这里针对

imei

{ResponseBodyRequestMapping(test.do)public

Result

http://xxxxx.in.xxxxx.com/api/test.do?reqno123456imeiimeisn1001modelmx6osflyme6ver1.0.0localeen_US返回结果

{code:

http://xxxxxxx.com/api/test.do?reqno123456sn1001modelmx6osflyme6ver1.0.0localeen_USdeviceId7cfbf5cbd70bcf1c006d7d0aa77688518444497a2b45683ea41ce690e92d6d38返回结果

{code:

org.testng.annotations.Test;,deviceId:

7cfbf5cbd70bcf1c006d7d0aa77688518444497a2b45683ea41ce690e92d6d38}

imei