Spring Boot 防护 XSS + SQL 注入攻击

为了防止XSS和SQL注入攻击，你可以使用Spring Boot的自动过滤器功能，并结合一些第三方库如Antisamy。

1. 添加依赖到你的pom.xml：

<!-- 用于XSS防护的库 -->
<dependency>
    <groupId>org.owasp.antisamy</groupId>
    <artifactId>antisamy</artifactId>
    <version>1.5.12</version>
</dependency>

2. 配置XSS过滤器：

import org.owasp.validator.html.Policy;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.view.ContentNegotiatingViewResolver;
 
@Configuration
public class SecurityConfig {
 
    @Autowired
    private ContentNegotiatingViewResolver viewResolver;
 
    @Bean
    public Policy xssPolicy() {
        // 加载XSS过滤策略
        return Policy.getInstance("antisamy-slashdot.xml");
    }
 
    @Bean
    public XssFilter xssFilter() {
        // 创建XSS过滤器
        return new XssFilter(xssPolicy());
    }
 
    @Bean
    public FilterRegistrationBean xssFilterRegistration() {
        FilterRegistrationBean registration = new FilterRegistrationBean(xssFilter());
        registration.addUrlPatterns("/api/*"); // 设置过滤路径
        registration.setOrder(1);
        return registration;
    }
}

3. 创建XSS过滤器类：

import org.springframework.stereotype.Component;
import org.owasp.validator.html.AntiSamy;
import org.owasp.validator.html.CleanResults;
import org.owasp.validator.html.Policy;
import javax.servlet.*;
import javax.servlet.http.HttpServletRequest;
import java.io.IOException;
 
@Component
public class XssFilter implements Filter {
 
    private final Policy policy;
 
    public XssFilter(Policy policy) {
        this.policy = policy;
    }
 
    @Override
    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) 
            throws IOException, ServletException {
        chain.doFilter(new XssHttpServletRequestWrapper((HttpServletRequest) request), response);
    }
 
    private static class XssHttpServletRequestWrapper extends HttpServletRequestWrapper {
 
        private final HttpServletRequest request;
 
        public XssHttpServletRequestWrapper(HttpServletRequest request) {
            super(request);
            this.request = request;
        }