刚开始使用 Java 和 Spring，来自 C# 背景，我无法让“PUT”请求正常工作。
我在 Jetty 9.0.6 上运行 Spring 3.2.4。
我有一个简单的控制器，方法如下
@RequestMapping(value = "/{id}", method = RequestMethod.PUT)
public ResponseEntity<String> update(@PathVariable Integer id, @RequestBody Employee employee) {
HttpHeaders headers = new HttpHeaders();
headers.set("content-location", "/api/employees/" + id);
return new ResponseEntity<>("", headers, HttpStatus.OK);
}
执行此请求时，我收到以下错误：
2013 年 10 月 31 日上午 10:16:16 org.springframework.web.servlet.mvc.support.DefaultHandlerExceptionResolver handleHttpRequestMethodNotSupported
警告：不支持请求方法“PUT”
如果我将 RequestMethod 更改为“POST”，它工作正常。
Spring 是否支持“PUT”请求？我如何让它识别“PUT”
乔
编辑
原来我是愚蠢的。当他提到网址时，Affe 提示了我。我像 'api/employees?id=32' 一样访问它，而它应该是 'api/employees/32'
希望这对其他人有所帮助，这里是 Web 描述符、servlet 和控制器。
网页描述符
<web-app xmlns='http://java.sun.com/xml/ns/javaee'
xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'
xsi:schemaLocation='http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd'
version='3.0'>
<display-name>timesheet-app</display-name>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>mvc-dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>mvc-dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
MVC-Dispatcher-Servlet
<?xml version='1.0' encoding='UTF-8'?>
<beans xmlns='http://www.springframework.org/schema/beans'
xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'
xmlns:context='http://www.springframework.org/schema/context'
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation='http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd'>
<!-- Scans the classpath of this application for @Components to deploy as beans -->
<context:component-scan base-package='org.timesheets.web' />
<!-- Configures the @Controller programming model -->
<mvc:annotation-driven />
<!-- Handles HTTP GET requests for /resources/** by efficiently serving up static resources in the ${webappRoot}/resources/ directory -->
<mvc:resources mapping="/resources/**" location="/resources/" />
<!-- Resolves view names to protected .jsp resources within the /WEB-INF/views directory -->
<bean class='org.springframework.web.servlet.view.InternalResourceViewResolver'>
<property name='prefix' value='/WEB-INF/views/' />
<property name='suffix' value='.jsp' />
</bean>
</beans>
控制器
@Controller
@RequestMapping("/api/employees")
public class EmployeeController {
@RequestMapping(method = RequestMethod.GET)
public @ResponseBody List<Employee> get() {
List<Employee> employees = new ArrayList<>();
for(int i = 1; i <= 10; i++){
employees.add(new Employee(i, "Test " + i, "Department " + i));
}
return employees;
}
@RequestMapping(value = "/{id}", method = RequestMethod.GET)
public @ResponseBody Employee get(@PathVariable Integer id) {
return new Employee(1, "Test", "IT");
}
@RequestMapping(method = RequestMethod.POST)
public ResponseEntity<String> create(@RequestBody Employee employee) {
HttpHeaders headers = new HttpHeaders();
headers.set("content-location", "/api/employees/32");
return new ResponseEntity<>("", headers, HttpStatus.CREATED);
}
@RequestMapping(value = "/{id}", method = RequestMethod.PUT)
public ResponseEntity<String> update(@PathVariable Integer id, @RequestBody Employee employee) {
HttpHeaders headers = new HttpHeaders();
headers.set("content-location", "/api/employees/" + id);
return new ResponseEntity<>("", headers, HttpStatus.OK);
}
}