Spring Boot 编码/特殊字符

Question

I have issue with encoding of Spring boot REST API special cs_CS characters.

Example:

@ResponseBody
@RequestMapping("/api/test")
public String test(){
    String specialCH = "ěščřžýáíéúů";
    System.out.println(specialCH);

    return specialCH;
}


2020-11-16 11:22:04.557  INFO 7400 --- [           main] cz.fry.chmi.ChmiApplication              : Started ChmiApplication in 5.187 seconds (JVM running for 5.703)
2020-11-16 11:22:05.167  INFO 7400 --- [nio-8080-exec-1] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring DispatcherServlet 'dispatcherServlet'
2020-11-16 11:22:05.168  INFO 7400 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : Initializing Servlet 'dispatcherServlet'
2020-11-16 11:22:05.175  INFO 7400 --- [nio-8080-exec-1] o.s.web.servlet.DispatcherServlet        : Completed initialization in 7 ms
ěščřžýáíéúů

Result in browser:

result

application.properties:

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

OS Windows 10 1909.

PS: If I create file test.html ->

+ěššččřřžýáíéáý

Result in browser:

result

Answer 1

I found solution

Just need force UTF-8 encoding in Spring MVC returning String:

In @RequestMapping , use:

produces = MediaType.APPLICATION_JSON_VALUE + "; charset=utf-8"