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(xiàn)象：
本地運行測試均可通過，上測試環(huán)境后運行注入bean為空
現(xiàn)象：使用外置tomcat可觸發(fā)，本地使用內(nèi)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(guān)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(guān)Springboot 無法注入Bean內(nèi)容請搜索服務(wù)器之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持服務(wù)器之家！
原文鏈接：https://blog.csdn.net/wkh___/article/details/120221831
