@Override
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
throws Exception {
boolean result = false;
Enumeration headerNames = request.getHeaderNames();
while (headerNames.hasMoreElements()) {
String headerName = (String) headerNames.nextElement();
if ("user-agent".equals(headerName.toLowerCase())) {
if ("android".equals(request.getHeader(headerName).toLowerCase())) {
return true;
}
}
}
// 开发环境拦截策略
if (Constants.ENV_DEVELOPMENT.equals(
com.lefthand.comm.context.SystemContextHolder.getEnvironment())) {
result = this.preHandleDevelopment(request, response, handler);
}
// 测试环境拦截策略
if (Constants.ENV_TEST.equals(com.lefthand.comm.context.SystemContextHolder.getEnvironment())) {
result = this.preHandleTest(request, response, handler);
}
// 生产环境拦截策略
if (Constants.ENV_PRODUCTION.equals(
com.lefthand.comm.context.SystemContextHolder.getEnvironment())) {
result = this.preHandleProduction(request, response, handler);
}
return result;
}
private boolean preHandleDevelopment(
HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
boolean result = false;
String ctx = request.getContextPath();
String uri = request.getRequestURI();
// 判断拦截器排除的请求集合中是否包含当前请求
if (excludes != null) {
for (String exclude : excludes) {
// 如果包含当前请求, 则不拦截
if (uri.startsWith(ctx + exclude)) {
result = true;
break;
}
}
if (result) {
logger.debug("身份认证拦截器排除的请求: {}", uri);
return result;
}
}
// 判断是否通过身份认证, 且存在会话信息
com.lefthand.comm.domain.Handleable session =
com.lefthand.comm.context.SecurityContextHolder.getHandler();
// 没有会话信息, 则重定向到系统登录页
if (session == null) {
logger.debug("身份认证拦截器拦截的请求: {}", uri);
response.sendRedirect(ctx + com.lefthand.comm.context.SystemContextHolder.getLogin());
return false;
}
return true;
}