60 lines
1.9 KiB
Java
60 lines
1.9 KiB
Java
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package com.baeldung.web;
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import java.time.LocalTime;
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import java.util.Date;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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import org.springframework.stereotype.Controller;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.servlet.mvc.method.annotation.SseEmitter;
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import org.springframework.web.servlet.mvc.method.annotation.SseEmitter.SseEventBuilder;
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import com.baeldung.Constants;
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@Controller
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public class SseEmitterController {
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private ExecutorService nonBlockingService = Executors.newCachedThreadPool();
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@GetMapping(Constants.API_SSE)
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public SseEmitter handleSse() {
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SseEmitter emitter = new SseEmitter();
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nonBlockingService.execute(() -> {
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try {
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emitter.send(Constants.API_SSE_MSG + " @ " + new Date());
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emitter.complete();
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} catch (Exception ex) {
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System.out.println(Constants.GENERIC_EXCEPTION);
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emitter.completeWithError(ex);
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}
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});
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return emitter;
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}
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@GetMapping("/stream-sse-mvc")
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public SseEmitter streamSseMvc() {
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SseEmitter emitter = new SseEmitter();
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ExecutorService sseMvcExecutor = Executors.newSingleThreadExecutor();
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sseMvcExecutor.execute(() -> {
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try {
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for (int i = 0; true; i++) {
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SseEventBuilder event = SseEmitter.event()
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.data("SSE MVC - " + LocalTime.now()
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.toString())
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.id(String.valueOf(i))
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.name("sse event - mvc");
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emitter.send(event);
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Thread.sleep(1000);
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}
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} catch (Exception ex) {
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emitter.completeWithError(ex);
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}
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});
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return emitter;
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}
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}
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