aop配合反射统一签名验证
直接上代码，作为记录。
CheckSignAspect.java
@Aspect //定义一个切面
@Configuration
@Log4j2
public class CheckSignAspect {
// 定义切点Pointcut
@Pointcut("execution(* com.lsj.xxl.controller.*.*CheckSign(..))")
public void excudeService() {
}
@Around("excudeService()")
public Object doAround(ProceedingJoinPoint pjp) throws Throwable {
String class_name = pjp.getTarget().getClass().getName();
String method_name = pjp.getSignature().getName();
String[] paramNames = getFieldsName(class_name, method_name);
Object[] method_args = pjp.getArgs();
SortedMap<String, String> map = logParam(paramNames, method_args);
if (map != null) {
String sign = map.get("sign").toUpperCase();
map.remove("sign");
String realSign = SignUtil.createSign("utf8", map);
if (!realSign.equals(sign)) {
return "签名校验错误";
}
}
Object result = pjp.proceed();
return result;
}
private String[] getFieldsName(String class_name, String method_name) throws Exception {
Class<?> clazz = Class.forName(class_name);
String clazz_name = clazz.getName();
ClassPool pool = ClassPool.getDefault();
ClassClassPath classPath = new ClassClassPath(clazz);
pool.insertClassPath(classPath);
CtClass ctClass = pool.get(clazz_name);
CtMethod ctMethod = ctClass.getDeclaredMethod(method_name);
MethodInfo methodInfo = ctMethod.getMethodInfo();
CodeAttribute codeAttribute = methodInfo.getCodeAttribute();
LocalVariableAttribute attr = (LocalVariableAttribute) codeAttribute.getAttribute(LocalVariableAttribute.tag);
if (attr == null) {
return null;
}
String[] paramsArgsName = new String[ctMethod.getParameterTypes().length];
int pos = Modifier.isStatic(ctMethod.getModifiers()) ? 0 : 1;
for (int i = 0; i < paramsArgsName.length; i++) {
paramsArgsName[i] = attr.variableName(i + pos);
}
return paramsArgsName;
}
private SortedMap<String, String> logParam(String[] paramsArgsName, Object[] paramsArgsValue) {
Map<String, String> map = new HashMap();
if (ArrayUtils.isEmpty(paramsArgsName) || ArrayUtils.isEmpty(paramsArgsValue)) {
log.info("该方法没有参数");
return null;
}
// StringBuffer buffer = new StringBuffer();
for (int i = 0; i < paramsArgsName.length; i++) {
//参数名
String name = paramsArgsName[i];
//参数值
Object value = paramsArgsValue[i];
// if ("sign".equals(name)){
// continue;
// }
if (isPrimite(value.getClass())) {
map.put(name, String.valueOf(value));
} else {
map.put(name, value.toString());
}
}
return new TreeMap<>(map);
}
private boolean isPrimite(Class<?> clazz) {
if (clazz.isPrimitive() || clazz == String.class) {
return true;
} else {
return false;
}
}
}
SignUtil.java
public class SignUtil {
public static String createSign(String characterEncoding, SortedMap<String, String> parameters) {
StringBuffer sb = new StringBuffer();
for (Map.Entry<String, String> entry : parameters.entrySet()) {
if (!Strings.isNullOrEmpty(entry.getValue()) && !"sign".equals(entry.getKey()) && !"key".equals(entry.getKey())) {
sb.append(entry.getKey() + "=" + entry.getValue() + "&");
}
}
String s = sb.toString();
if (s.length() > 0) {
s = s.substring(0, sb.toString().length() - 1);
}
System.out.println("待加密字符串:" + s);
String sign = MD5Util.MD5Encode(s, characterEncoding).toUpperCase();
return sign;
}
}
测试
@PostMapping("test1")
public String bbCheckSign( @RequestParam("value") String value,
@RequestParam("bb")String bb,
@RequestParam("sign")String sign){
return "ok";
}
补充：
上述方式也可换为注解实现，具体修改代码如下：
添加注解
@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME )
public @interface CheckSign {
}
改变切点
@Pointcut("@annotation(com.lsj.xxl.annotation.CheckSign)")接口统一签名校验
实现接口请求签名校验，时间戳判断，响应数据返回签名等内容。
这个签名校验，和返回签名可以用多种方法实现。
第一种aop 方式实现
自定义注解体
@Retention(value = RetentionPolicy.RUNTIME)
public @interface SignatureValidation {
}aop实现
@Aspect
@Component
public class SignatureValidation {
private static final long MAX_REQUEST = 10 * 60 * 1000L;
private static final String SECRET= "test";
@Pointcut("execution(@com.xx.xxx.xxxxx.aop.SignatureValidation * *(..))")
private void verifyUserKey() {
}
@Before("verifyUserKey()")
public void doBasicProfiling(JoinPoint point) {
ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
HttpServletRequest request = Objects.requireNonNull(attributes).getRequest();
String sign = "" ;
String timestamp = "" ;
String version = "";
SortedMap<String,String> sortedMap = new TreeMap<String,String>();
for ( Object obj :point.getArgs()) {
JSONObject jsonObject =JSONUtil.parseObj(obj);
if( !StrUtil.isEmptyIfStr(jsonObject.get("sign"))){
sign=jsonObject.get("sign").toString();
}
if(!StrUtil.isEmptyIfStr(jsonObject.get("timestamp"))){
timestamp=jsonObject.get("timestamp").toString();
sortedMap.put("timestamp", timestamp);
}
if(!StrUtil.isEmptyIfStr(jsonObject.get("version"))){
version=jsonObject.get("version").toString();
sortedMap.put("version", version);
}
if(!StrUtil.isEmptyIfStr(jsonObject.get("data"))){
String dataStr= jsonObject.get("data").toString();
if(!JSONUtil.isJsonObj(dataStr)) {
if(JSONUtil.isJsonArray(dataStr)){
sortedMap.put("data", JSONUtil.parseArray(dataStr).toString());
}
sortedMap.put("data", dataStr);
}
else
{
JSONObject dataJson= JSONUtil.parseObj(dataStr);
@SuppressWarnings("unchecked")
Set<String> keySet = dataJson.keySet();
String key = "";
Object value = null;
// 遍历json数据，添加到SortedMap对象
for (Iterator<String> iterator = keySet.iterator(); iterator.hasNext();) {
key = iterator.next();
value = dataJson.get(key);
String valueStr="";
if(!StrUtil.isEmptyIfStr(value)){
valueStr=value.toString();
}
sortedMap.put(key, valueStr);
}
}
}
}
if (StrUtil.isEmptyIfStr(sign)) {
throw new CustomException(BaseResultInfoEnum.ERROR_MISSING_SIGN_1009.getMsg(),BaseResultInfoEnum.ERROR_MISSING_SIGN_1009.getCode());
}
//新的签名
String newSign = createSign(sortedMap,SECRET);
if (!newSign.equals(sign.toUpperCase())) {
throw new CustomException(BaseResultInfoEnum.ERROR_SIGN_1010.getMsg(),BaseResultInfoEnum.ERROR_SIGN_1010.getCode());
}
}
@AfterReturning(pointcut="verifyUserKey()",returning="responseObject")
public void afterReturning(JoinPoint point,Object responseObject) {
HttpServletResponse response=((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getResponse();
if(responseObject instanceof ResponseModel){
ResponseModel responseModel= (ResponseModel) responseObject;
responseModel.setTimestamp(System.currentTimeMillis());
responseModel.setVersion(0);
String sign= Md5Utils.createSign(Md5Utils.createParameters(responseModel),SECRET);
responseModel.setSign(sign);
}
}
}
md5签名
public class Md5Utils {
public static String createSign(SortedMap<String,String> parameters, String key){
StringBuffer sb = new StringBuffer();
Set es = parameters.entrySet();
Iterator it = es.iterator();
while(it.hasNext()) {
Map.Entry entry = (Map.Entry)it.next();
String k = (String)entry.getKey();
Object v = entry.getValue();
if(null != v && !"".equals(v)
&& !"sign".equals(k) && !"key".equals(k)) {
sb.append(k + "=" + v + "&");
}
}
sb.append("key=" + key);
String sign = SecureUtil.md5(sb.toString()).toUpperCase();
return sign;
}
public static SortedMap<String,String> createParameters(ResponseModel responseModel){
SortedMap<String,String> sortedMap = new TreeMap<String,String>();
if(responseModel!=null) {
sortedMap.put("timestamp", Convert.toStr(responseModel.getTimestamp()) );
sortedMap.put("version", Convert.toStr(responseModel.getVersion()));
JSONObject json = JSONUtil.parseObj(responseModel, false);
if(responseModel.getData()!=null) {
sortedMap.put("data", json.get("data").toString());
}
}
return sortedMap;
}
}
使用，在控制中的方法上方注解即可
第二种拦截器
这里只做了时间判断，签名校验可以根据需要修改即可实现。
过滤器
import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;
@WebFilter(urlPatterns = "
@Configuration
public class InterceptorConfig implements WebMvcConfigurer{
@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(getHandlerInterceptor());
}
@Override
public void addCorsMappings(CorsRegistry registry) {
registry.addMapping("
public class RequestWrapper extends HttpServletRequestWrapper {
private final String body;
public RequestWrapper(HttpServletRequest request) {
super(request);
StringBuilder stringBuilder = new StringBuilder();
BufferedReader bufferedReader = null;
InputStream inputStream = null;
try {
inputStream = request.getInputStream();
if (inputStream != null) {
bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
char[] charBuffer = new char[128];
int bytesRead = -1;
while ((bytesRead = bufferedReader.read(charBuffer)) > 0) {
stringBuilder.append(charBuffer, 0, bytesRead);
}
} else {
stringBuilder.append("");
}
} catch (IOException ex) {
} finally {
if (inputStream != null) {
try {
inputStream.close();
}
catch (IOException e) {
e.printStackTrace();
}
}
if (bufferedReader != null) {
try {
bufferedReader.close();
}
catch (IOException e) {
e.printStackTrace();
}
}
}
body = stringBuilder.toString();
}
@Override
public ServletInputStream getInputStream() throws IOException {
final ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(body.getBytes());
ServletInputStream servletInputStream = new ServletInputStream() {
@Override
public boolean isFinished() {
return false;
}
@Override
public boolean isReady() {
return false;
}
@Override
public void setReadListener(ReadListener readListener) {
}
@Override
public int read() throws IOException {
return byteArrayInputStream.read();
}
};
return servletInputStream;
}
@Override
public BufferedReader getReader() throws IOException {
return new BufferedReader(new InputStreamReader(this.getInputStream()));
}
public String getBody() {
return this.body;
}
}
拦截器 这里可以实现请求来的签名处理，这里只处理时间了
import cn.hutool.core.util.StrUtil;
import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import xxx.xxx.xxx.common.result.BaseResultInfoEnum;
import xxx.xxx.common.core.exception.CustomException;
import org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController;
import org.springframework.web.method.HandlerMethod;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
public class TimestampInterceptor implements HandlerInterceptor {
private static final long MAX_REQUEST = 10 * 60 * 1000L;
@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
if (handler instanceof HandlerMethod) {
HandlerMethod handlerMethod = (HandlerMethod) handler;
if (handlerMethod.getBean() instanceof BasicErrorController) {
return true;
}
// if ("GET".equals(request.getMethod())) {
// return true;
// }
ValidateResponse validateResponse = new ValidateResponse(true, null);
RequestWrapper myRequestWrapper = new RequestWrapper((HttpServletRequest) request);
validateResponse= checkTimestamp(myRequestWrapper.getBody());
if (!validateResponse.isValidate()) {
throw validateResponse.getException();
}
}
return true;
}
@Override
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) {
}
@Override
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) {
}
private ValidateResponse checkTimestamp(String requestBody) {
try {
JSONObject jsonObject = JSONUtil.parseObj(requestBody);
String timestamp = "" ;
if(!StrUtil.isEmptyIfStr(jsonObject.get("timestamp"))) {
timestamp=jsonObject.get("timestamp").toString();
}
if (StrUtil.isEmptyIfStr(timestamp)) {
return new ValidateResponse(false, new CustomException(BaseResultInfoEnum.ERROR_MISSING_TIMESTAMP_1007.getMsg(), BaseResultInfoEnum.ERROR_MISSING_TIMESTAMP_1007.getCode()));
}
long now = System.currentTimeMillis();
long time = Long.parseLong(timestamp);
if (now - time > MAX_REQUEST) {
return new ValidateResponse(false, new CustomException(BaseResultInfoEnum.ERROR_TIMESTAMP_TIMEOUT_1008.getMsg(), BaseResultInfoEnum.ERROR_TIMESTAMP_TIMEOUT_1008.getCode()));
}
} catch (Exception e) {
e.printStackTrace();
}
return new ValidateResponse(true, null);
}
private static class ValidateResponse {
private boolean validate;
private CustomException exception;
public ValidateResponse(boolean validate, CustomException exception) {
this.validate = validate;
this.exception = exception;
}
public boolean isValidate() {
return validate;
}
public Exception getException() {
return exception;
}
}
}
返回给前端(或其他平台的)处理类
import comzzzz.xx.common.pojo.PageResponseModel;
import com.zzz.xxxx.common.pojo.ResponseModel;
import org.springframework.core.MethodParameter;
import org.springframework.http.MediaType;
import org.springframework.http.server.ServerHttpRequest;
import org.springframework.http.server.ServerHttpResponse;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.servlet.mvc.method.annotation.ResponseBodyAdvice;
@ControllerAdvice
public class ResponseBodyTimestamp implements ResponseBodyAdvice {
@Override
public boolean supports(MethodParameter methodParameter, Class aClass) {
return true;
}
@Override
public Object beforeBodyWrite(Object o, MethodParameter methodParameter, MediaType mediaType, Class aClass, ServerHttpRequest serverHttpRequest, ServerHttpResponse serverHttpResponse) {
//就是这里处理返回签名数据
if(o instanceof ResponseModel){
ResponseModel responseModel= (ResponseModel) o;
responseModel.setTimestamp(System.currentTimeMillis());
return responseModel;
}
if(o instanceof PageResponseModel){
PageResponseModel responseModel= (PageResponseModel) o;
responseModel.setTimestamp(System.currentTimeMillis());
return responseModel;
}
return o;
}
}
最终实现的效果图
以上为个人经验，希望能给大家一个参考，也希望大家多多支持编程网。
