Question

我按照本指南将MySql添加到已经存在的SpringBoot项目中，该项目的依赖关系管理处于graddle状态。就在我添加教程中使用的这三个类时，如下所示

主/ JAVA /净/代码/模型/ Users.Java

    $(document).ready(function () {
        $("#datepicker").kendoDatePicker();

        $(".delay").click(function () {

            //Container Div
            $("#delayActionPanel").toggle("slide");

            //Target input-trying to perform a click using jq
            $('.k-select').trigger("click");
        });
    });

和用户存储库为主/ JAVA /净/代码/回购/ UserRepository.Java package net.code.repo;

package net.code.controller;
import net.code.model.User;
import net.code.repo.UserRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;


@RestController   // This means that this class is a Controller
@RequestMapping(path="/demo") // This means URL's start with /demo (after Application path)
public class MainController {
    @Autowired // This means to get the bean called userRepository
    // Which is auto-generated by Spring, we will use it to handle the data
    private UserRepository userRepository;

    @GetMapping(path="/add") // Map ONLY GET Requests
    public @ResponseBody String addNewUser (@RequestParam String name
            , @RequestParam String email) {
        // @ResponseBody means the returned String is the response, not a view name
        // @RequestParam means it is a parameter from the GET or POST request

        User n = new User();
        n.setName(name);
        n.setEmail(email);
        userRepository.save(n);
        return "Saved";
    }

    @GetMapping(path="/all")
    public @ResponseBody Iterable<User> getAllUsers() {
        // This returns a JSON or XML with the users
        return userRepository.findAll();
    }
}

使用webservice控制器主/ JAVA /净/代码/控制器/ MainController.Java

import net.code.model.User;
import org.springframework.data.repository.CrudRepository;
import org.springframework.stereotype.Repository;

// This will be AUTO IMPLEMENTED by Spring into a Bean called userRepository
// CRUD refers Create, Read, Update, Delete

@Repository
public interface UserRepository extends CrudRepository<User, Long> {

}

我的班级@SpringBoot 主/ JAVA /净/代码/ App.Java

package net.code.controller;

import net.code.model.User;
import net.code.repo.UserRepository;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;


@RestController   // This means that this class is a Controller
@RequestMapping(path="/demo") // This means URL's start with /demo (after Application path)
public class MainController {
    @Autowired // This means to get the bean called userRepository
    // Which is auto-generated by Spring, we will use it to handle the data
    private UserRepository userRepository;

    @GetMapping(path="/add") // Map ONLY GET Requests
    public @ResponseBody String addNewUser (@RequestParam String name
            , @RequestParam String email) {
        // @ResponseBody means the returned String is the response, not a view name
        // @RequestParam means it is a parameter from the GET or POST request

        User n = new User();
        n.setName(name);
        n.setEmail(email);
        userRepository.save(n);
        return "Saved";
    }

    @GetMapping(path="/all")
    public @ResponseBody Iterable<User> getAllUsers() {
        // This returns a JSON or XML with the users
        return userRepository.findAll();
    }
}

但是每次运行应用程序时，我都会收到以下消息

package net.code;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;

//@CrossOrigin(origins = "http://127.0.0.1:8080")

@SpringBootApplication

@ComponentScan("net.code")
//@ComponentScan(basePackages = { "net.code","net.code.repo"})

//@RestController
@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})
public class App extends WebMvcConfigurerAdapter {

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

}

我已经搜索过这样的相关问题 Spring Boot not autowiring @Repository，@RestController in other package doesn't work但无法修复，因为这些链接的建议对我不起作用我也想在这里尝试接受的解决方案 Consider defining a bean of type 'package' in your configuration [Spring-Boot]但我发现@EnableJpaRepositories

没有这样的包

请帮我解决这个问题，因为我一直试图解决这个问题

Answer 1

此代码的完美工作版本为here on github。您可以查看http://start.spring.io以获取spring-data-jpa的相应gradle版本。

SpringBoot应用程序无法在Controller中找到已定义的存储库

1 个答案: