springboot使用eav模型实现curd 包含controller

以下是一个简单的EAV模型的CRUD操作的Controller示例：

@RestController
@RequestMapping("/eav")
public class EavController {
    @Autowired
    private EavService eavService;
    
    @PostMapping("/entity")
    public ResponseEntity<Entity> createEntity(@RequestParam String type, @RequestParam String name) {
        Entity entity = eavService.createEntity(type, name);
        return ResponseEntity.ok(entity);
    }
    
    @PostMapping("/attribute")
    public ResponseEntity<Attribute> createAttribute(@RequestParam String name) {
        Attribute attribute = eavService.createAttribute(name);
        return ResponseEntity.ok(attribute);
    }
    
    @PostMapping("/value")
    public ResponseEntity<Value> createValue(@RequestParam Long entityId, @RequestParam Long attributeId, 
                                              @RequestParam String value, @RequestParam String type) {
        Entity entity = eavService.getEntity(entityId);
        Attribute attribute = eavService.getAttribute(attributeId);
        Value val = eavService.createValue(entity, attribute, value, type);
        return ResponseEntity.ok(val);
    }
    
    @GetMapping("/values")
    public ResponseEntity<List<Value>> getValues(@RequestParam Long entityId, @RequestParam Long attributeId) {
        Entity entity = eavService.getEntity(entityId);
        Attribute attribute = eavService.getAttribute(attributeId);
        List<Value> values = eavService.getValues(entity, attribute);
        return ResponseEntity.ok(values);
    }
    
    // ...
}

在Controller中，我们使用了EavService中的方法来实现EAV模型的CURD操作。在POST请求中，我们使用@RequestParam注解来获取请求参数；在GET请求中，我们使用@RequestParam注解来获取查询参数。