Question

我有一个用@WebServlet("*.html")注释的servlet和一个用@GetMapping("/greeting.html")注释的控制器。尽管控制器映射更具体，但servlet优先。

在我的应用程序中，我无法轻易更改servlet的映射（我正处于从servlet到Spring-Boot的复杂迁移之中）。

我尝试了@Order注释和其他匹配规则。到目前为止没有任何进展。

您可以仅使用3个类来重现它：

application.java

package hello;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletComponentScan;

@SpringBootApplication
@ServletComponentScan
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }

}

GreetingController.java

package hello;

import org.springframework.core.Ordered;
import org.springframework.core.annotation.Order;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
public class GreetingController {

    @GetMapping("/greeting.html")
    @Order(Ordered.HIGHEST_PRECEDENCE)
    @ResponseBody
    public String greeting() {
        return "this is geeting.html";
    }

}

SimpleServlet.java

package hello;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.core.Ordered;
import org.springframework.core.annotation.Order;

@WebServlet("/*.html")
@Order(Ordered.LOWEST_PRECEDENCE)
public class SimpleServlet extends HttpServlet {

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        resp.getWriter().println("This is *.html servlet");
        super.doGet(req, resp);
    }

}

访问localhost:8080时，我希望看到this is geeting.html，反而得到This is *.html servlet。

在春季启动时，`* .html` servlet优先于`document.html`控制器映射

0 个答案: