SpringFramework手动注册RequestMapping API接口
业务场景:最近遇到一个特殊需求,需要手动注册RequestMapping ,使用SpringFramework项目里的RequestMappingInfoHandlerMapping进行手动注册
package portal.configure;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.condition.ConditionalOnExpression;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.http.HttpStatus;
import org.springframework.social.connect.web.HttpSessionSessionStrategy;
import org.springframework.social.connect.web.SessionStrategy;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.context.request.ServletWebRequest;
import org.springframework.web.filter.OncePerRequestFilter;
import org.springframework.web.servlet.mvc.method.RequestMappingInfo;
import org.springframework.web.servlet.mvc.method.RequestMappingInfoHandlerMapping;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
@Configuration
@ConditionalOnExpression("${auth.isEnable : false}")
public class RequestMappingConfiguration {
private SessionStrategy sessionStrategy = new HttpSessionSessionStrategy();
@Autowired
public void setRequestMapping(RequestMappingInfoHandlerMapping mapping)
throws NoSuchMethodException {
mapping.registerMapping(RequestMappingInfo
.paths("/api/test").methods(RequestMethod.GET).build(), this, this.getClass().getMethod("reqMethod", HttpServletRequest.class, HttpServletResponse.class));
}
public void reqMethod(HttpServletRequest request, HttpServletResponse response) throws Exception {
sessionStrategy.setAttribute(new ServletWebRequest(request), "userCode", "admin");
response.setStatus(HttpStatus.OK.value());
response.setCharacterEncoding("utf-8");
response.setContentType ( "application/json; charset=utf-8");
PrintWriter printWriter = response.getWriter();
printWriter.write("{ \"status\":"+HttpStatus.OK.value()+", \"desc\":\""+ "api接口调用成功!" +"\"}");
printWriter.flush();
}
@Bean
@Primary
public FilterRegistrationBean myFilterRegistration() {
FilterRegistrationBean registration = new FilterRegistrationBean();
registration.setFilter(new OncePerRequestFilter() {
@Override
protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
String origin = request.getHeader("origin");
if (StringUtils.isEmpty(origin)) {
origin = "*";
}
response.setHeader("Access-Control-Allow-Origin", origin);
response.setHeader("Access-Control-Allow-Credentials", "true");
filterChain.doFilter(request, response);
}
});
registration.addUrlPatterns("/api");
return registration;
}
}
linux环境测试api接口
[www@localhost ~]$ curl http://127.0.0.1:8080/api/test
{ "status":200, "desc":"api接口调用成功!"}