遇到一個(gè)需求是：要為用戶設(shè)置不同的菜單、數(shù)據(jù)訪問(wèn)權(quán)限。對(duì)于一些特定類型的數(shù)據(jù)，有的用戶可以看有的用戶則不可以。一開(kāi)始沒(méi)有太多思路，后來(lái)一想是不是可以把'特定類型'這個(gè)參數(shù)通過(guò)@PathVariable注解加到路徑上，這樣就可以通過(guò)攔截器攔截后，校驗(yàn)此用戶是否可以訪問(wèn)這個(gè)路徑（類型）下的數(shù)據(jù)了。

話不多說(shuō)，以下為具體實(shí)踐

攔截器配置類

@Configurationpublic class UserInterceptorConfig { //為了保證IDbnetUserService提前實(shí)例化，能在userInterceptor使用 //ConditionalOnMissingBean可以保證只有一個(gè)IDbnetUserService的實(shí)例 @Bean @ConditionalOnMissingBean(IDbnetUserService.class) public IDbnetUserService dbnetUserService() { return new DbnetUserServiceImpl(); } //攔截器 @Bean(name = 'userInterceptor') public HandlerInterceptor userInterceptor(IDbnetUserService dbnetUserService) { return new HandlerInterceptor() { @Override public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {//url = request.getRequestURI() 判斷url是否可以有權(quán)限訪問(wèn)而返回true或者false } }; }}

注冊(cè)攔截器

//注冊(cè)攔截器 @Bean public WebMvcConfigurer registerInterceptor(@Qualifier('userInterceptor') HandlerInterceptor userInterceptor) { return new WebMvcConfigurerAdapter() { @Override public void addInterceptors(InterceptorRegistry registry) {//要攔截的路徑List<String> path = interceptorProperties.getPath();//要排除的路徑List<String> excludePath = interceptorProperties.getExcludePath();registry.addInterceptor(userInterceptor).addPathPatterns(path.stream().toArray(String[]::new)) .excludePathPatterns(excludePath.stream().toArray(String[]::new)); } }; }

配置要攔截的路徑

@Component@ConfigurationProperties(prefix = 'dbnet.interceptor')public class InterceptorProperties { /** * 需要攔截的接口通配 */ private List<String> path = new ArrayList<>(); /** * 需要忽略的接口通配 */ private List<String> excludePath = new ArrayList<>(); public List<String> getPath() { return path; } public void setPath(List<String> path) { this.path = path; } public List<String> getExcludePath() { return excludePath; } public void setExcludePath(List<String> excludePath) { this.excludePath = excludePath; }}

dbnet: interceptor: path: /dbnet/**,/datanet/** excludePath: /dbnet/detail,/datanet/recommend,/datanet/count,/datanet/getKeys,/datenet/metadata/**

以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持好吧啦網(wǎng)。