我正在使用Spring 4,Java 8,Tomcat 7的控制器示例中的一个简单的流整数值。
码:
package com.entrib.emg.server.controller.rest;
import java.io.IOException;
import java.io.OutputStream;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.mvc.method.annotation.StreamingResponseBody;
@Controller
public class StreamRecordsController {
@RequestMapping(value = "/streamrecords", method = RequestMethod.GET)
public StreamingResponseBody handleRequest ()
throws Exception {
return new StreamingResponseBody() {
@Override
public void writeTo (OutputStream out) throws IOException {
for (int i = 0; i < 1000; i++) {
out.write((Integer.toString(i) + " - ")
.getBytes());
out.flush();
try {
Thread.sleep(5);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
};
}
}
错误:
Type Exception Report
Message Could not resolve view with name 'streamrecords' in servlet with name 'spring'
Description The server encountered an unexpected condition that prevented it from fulfilling the request.
Exception
javax.servlet.ServletException: Could not resolve view with name 'streamrecords' in servlet with name 'spring'
org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1266)
org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1041)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:984)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
javax.servlet.http.HttpServlet.service(HttpServlet.java:624)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
Note The full stack trace of the root cause is available in the server logs.
以下是快照:
题:
我在这里想念什么。
期望:
这只是一个简单的rest API代码,我期望从浏览器或邮递员访问该API时,都会从此控制器流式传输整数。
------------------------------------------------
更新
------------------------------------------------
当我添加时@ResponseBody
,我将遇到错误,
Type Status Report
Description The target resource does not have a current representation that would be acceptable to the user agent, according to the proactive negotiation header fields received in the request, and the server is unwilling to supply a default representation.
您在Servlet方法上缺少@ResponseBody,或者可以使用@RestController标记您的类
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