package cn.stylefeng.roses.kernel.db.starter;
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import com.alibaba.druid.util.Utils;
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import org.springframework.boot.autoconfigure.AutoConfigureBefore;
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import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
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import org.springframework.boot.web.servlet.FilterRegistrationBean;
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import org.springframework.context.annotation.Bean;
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import org.springframework.context.annotation.Configuration;
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import javax.servlet.*;
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import java.io.IOException;
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/**
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* 去除druid底部广告
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*
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* @author fengshuonan
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* @date 2022/3/15 16:40
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*/
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@Configuration
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@AutoConfigureBefore(DataSourceAutoConfiguration.class)
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public class GunsRemoveDruidAdAutoConfiguration {
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/**
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* 除去页面底部的广告
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*
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* @author xixiaowei
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* @date 2022/1/24 15:23
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*/
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@Bean
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public FilterRegistrationBean<?> removeDruidAdFilterRegistrationBean() {
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// 提取common.js的配置路径
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String pattern = "/druid/*";
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String commonJsPattern = pattern.replaceAll("\\*", "js/common.js");
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final String filePath = "support/http/resources/js/common.js";
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//创建filter进行过滤
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Filter filter = new Filter() {
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@Override
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public void init(FilterConfig filterConfig) {
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}
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@Override
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public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
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chain.doFilter(request, response);
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// 重置缓冲区，响应头不会被重置
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response.resetBuffer();
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// 获取common.js
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String text = Utils.readFromResource(filePath);
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// 正则替换banner, 除去底部的广告信息
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text = text.replaceAll("<a.*?banner\"></a><br/>", "");
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text = text.replaceAll("powered.*?shrek.wang</a>", "");
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response.getWriter().write(text);
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}
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@Override
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public void destroy() {
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}
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};
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FilterRegistrationBean<Filter> registrationBean = new FilterRegistrationBean<>();
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registrationBean.setFilter(filter);
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registrationBean.addUrlPatterns(commonJsPattern);
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return registrationBean;
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}
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}
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