示例問題代碼：
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@WebFilter(filterName = "authorizeFilter", urlPatterns = {"*.htm", "*.html"}, asyncSupported = true)public class AuthorizeFilter implements Filter { @Autowired private OtherBean otherBean; @Override public void init(FilterConfig filterConfig) throws ServletException { } @Override public void destroy() { } @Override public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { // true System.out.println(otherBean == null); }} |
現象：
本地運行測試均可通過，上測試環境后運行注入bean為空
現象：使用外置tomcat可觸發，本地使用內置tomcat則無此問題
解決代碼
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@Componentpublic class AuthorizeFilter implements Filter { @Autowired private OtherBean otherBean; @Override public void init(FilterConfig filterConfig) throws ServletException { } @Override public void destroy() { } @Override public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException { // false System.out.println(otherBean == null); }} |
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@Configurationpublic class WebFilterConfig implements WebMvcConfigurer { @Autowired private AuthorizeFilter authorizeFilter; @Bean("authorizeFilterBean") public FilterRegistrationBean authorizeFilterBean() { FilterRegistrationBean registration = new FilterRegistrationBean(); registration.setFilter(authorizeFilter); registration.addUrlPatterns(new String[]{"*.htm", "*.html"}); registration.setName("authorizeFilter"); registration.setAsyncSupported(true); return registration; }} |
啟動類加上：@ServletComponentScan({“com.hybase.site.filter”})
到此這篇關于Springboot @WebFilter無法注入其他Bean的示例問題的文章就介紹到這了,更多相關Springboot 無法注入Bean內容請搜索服務器之家以前的文章或繼續瀏覽下面的相關文章希望大家以后多多支持服務器之家！
原文鏈接：https://blog.csdn.net/wkh___/article/details/120221831
