Druid去除图片广告 springboot

布满荆棘的人生 2023-06-12 12:28 1阅读 0赞

import java.io.IOException;
    import javax.servlet.Filter;
    import javax.servlet.FilterChain;
    import javax.servlet.FilterConfig;
    import javax.servlet.ServletException;
    import javax.servlet.ServletRequest;
    import javax.servlet.ServletResponse;
    import org.springframework.boot.autoconfigure.AutoConfigureAfter;
    import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
    import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
    import org.springframework.boot.web.servlet.FilterRegistrationBean;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import com.alibaba.druid.spring.boot.autoconfigure.DruidDataSourceAutoConfigure;
    import com.alibaba.druid.spring.boot.autoconfigure.properties.DruidStatProperties;
    import com.alibaba.druid.util.Utils;
    
    @Configuration
    @ConditionalOnWebApplication
    @AutoConfigureAfter(DruidDataSourceAutoConfigure.class)
    @ConditionalOnProperty(name = "spring.datasource.druid.stat-view-servlet.enabled", havingValue = "true", matchIfMissing = true)
    public class DruidAdvertisingConfig {
       
        @Bean
        public FilterRegistrationBean configBean(DruidStatProperties properties) {
           
            DruidStatProperties.StatViewServlet druidConfig = properties.getStatViewServlet();
           
            String pattern = druidConfig.getUrlPattern() != null ? druidConfig.getUrlPattern() : "/druid/*";
            String commonJsPattern = pattern.replaceAll("\\*", "js/common.js");
            final String filePath = "support/http/resources/js/common.js";
            Filter filter = new Filter() {
                @Override
                public void init(FilterConfig filterConfig) throws ServletException {
                }
                @Override
                public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
                    chain.doFilter(request, response);
                    response.resetBuffer();
                   
                    String text = Utils.readFromResource(filePath);
                    
                    text = text.replaceAll("<a.*?banner\"></a><br/>", "");
                    text = text.replaceAll("powered.*?shrek.wang</a>", "");
                    response.getWriter().write(text);
                }
    
                @Override
                public void destroy() {
                }
            };
            FilterRegistrationBean registrationBean = new FilterRegistrationBean();
            registrationBean.setFilter(filter);
            registrationBean.addUrlPatterns(commonJsPattern);
            return registrationBean;
        }
    }