package com.thugstyle.web;
 
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
 
public class MyServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doPost(req,resp);
    }
 
    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
       resp.setContentType("text/html");
        PrintWriter out = resp.getWriter();
        out.println("<p style='color:orange'>歡迎訪問我的servlet</p>");
        out.flush();
        out.close();
    }
}

package com.thugstyle.config;
 
import com.thugstyle.web.MyServlet;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.filter.CharacterEncodingFilter;
 
@Configuration
public class ConfigApplication {
    @Bean /*在配置類中注冊(cè)servlet*/
    public ServletRegistrationBean servletRegistrationBean(){
        ServletRegistrationBean bean = new ServletRegistrationBean();
        bean.setServlet(new MyServlet());
        bean.addUrlMappings("/myServlet");
        return bean;
    }
}

package com.thugstyle;
 
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
 
@SpringBootApplication
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class,args);
    }
}

 @Bean
    public FilterRegistrationBean filterRegistrationBean(){
        FilterRegistrationBean filterBean = new FilterRegistrationBean();
        CharacterEncodingFilter filter = new CharacterEncodingFilter();
        /*將文本過濾器類注冊(cè)到容器中*/
        filter.setEncoding("utf-8");
        filter.setForceEncoding(true);
        filterBean.setFilter(filter);
        filterBean.addUrlPatterns("/*");
        return filterBean;
    }

server.servlet.encoding.enabled=false

server.servlet.encoding.charset=UTF-8
server.servlet.encoding.enabled=true
server.servlet.encoding.force=true