过滤spring boot中的数据

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import java.io.IOException;

@WebFilter(urlPatterns = "/*")
public class MyFilter implements Filter {

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        // 过滤器初始化方法
    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        // 过滤器处理方法
        // 在这里可以对请求进行处理，如获取请求参数、修改请求数据等

        // 调用filterChain.doFilter方法将请求传递给下一个过滤器或目标资源
        filterChain.doFilter(servletRequest, servletResponse);
    }

    @Override
    public void destroy() {
        // 过滤器销毁方法
    }
}

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletComponentScan;

@SpringBootApplication
@ServletComponentScan
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
    HttpServletRequest request = (HttpServletRequest) servletRequest;
    String parameter = request.getParameter("param");
    
    // 对参数进行过滤或修改
    String filteredParameter = filterParameter(parameter);
    
    // 将过滤后的参数设置回请求中
    request.setAttribute("param", filteredParameter);
    
    // 调用filterChain.doFilter方法将请求传递给下一个过滤器或目标资源
    filterChain.doFilter(servletRequest, servletResponse);
}