SpringBoot请求参数过滤空格

前言

博主github

博主个人博客http://blog.healerjean.com

1、参数修改SpaceHttpServletRequestWrapper

public class SpaceHttpServletRequestWrapper extends HttpServletRequestWrapper {

    public SpaceHttpServletRequestWrapper(HttpServletRequest servletRequest) {
        super(servletRequest);
    }

    @Override
    public String[] getParameterValues(String parameter) {
        String[] values = super.getParameterValues(parameter);
        if (values == null) {
            return new String[0];
        }
        int count = values.length;
        String[] encodedValues = new String[count];
        for (int i = 0; i < count; i++) {
            encodedValues[i] = values[i].trim();
        }
        return encodedValues;
    }

    @Override
    public String getParameter(String parameter) {
        String value = super.getParameter(parameter);
        if (value == null) {
            return null;
        }
        return value.trim();
    }
}

2、空格过滤器

public class SpaceFilter implements Filter {

    private FilterConfig filterConfig;

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        this.filterConfig = filterConfig;
    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws
            IOException, ServletException {
        filterChain.doFilter(new SpaceHttpServletRequestWrapper(
                (HttpServletRequest) servletRequest), servletResponse);
    }

    @Override
    public void destroy() {
        this.filterConfig = null;
    }
}

3、过滤器初始化

@Configuration
public class WebMvcConfiguration implements WebMvcConfigurer {

    @Bean
    public FilterRegistrationBean spaceFilter() {
        FilterRegistrationBean fitler = new FilterRegistrationBean();
        fitler.setFilter(new SpaceFilter());
        fitler.addUrlPatterns("/*");
        fitler.setName("SpaceFilter");
        fitler.setDispatcherTypes(DispatcherType.REQUEST);
        return fitler;
    }
}

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