最近遇到一个问题，比如GET请求中，key,value中带有特殊符号，请求会报错，见如下URL：

http://xxx.xxx.xxx:8081/aaa?key1=val1&a.\[\].id=123&b=a\[1\]

现在，我们进入boot启动类，添加如下代码即可：

public class DemoApp {

    public static void main(String[] args) {

           SpringApplication.run(DemoApp.class, args);

    }

    @Bean

    public TomcatServletWebServerFactory webServerFactory() {

          TomcatServletWebServerFactory factory = new TomcatServletWebServerFactory();

          factory.addConnectorCustomizers(new TomcatConnectorCustomizer() {

                            @Override

                            public void customize(Connector connector) {

                                   connector.setProperty("relaxedPathChars", "\"<>[\\]^`{|}");

                                   connector.setProperty("relaxedQueryChars", "\"<>[\\]^`{|}");

                             }

            });

            return factory;

    }

}