springboot 跨域访问 + swagger

1. 跨域访问：@CrossOrigin
2. swagger: @Api， @ApiOperation

类注解：

@RequestMapping("/theme")
@Api(tags="主题管理")
@RestController
public class ThemeController {
    // ...
}

方法注解

@CrossOrigin(origins = "*", maxAge = 3600)
@ApiOperation(value="增加度量字段", notes="增加度量字段，返回增加字段语句", response=String.class)
@RequestMapping(value="addLength", method=RequestMethod.GET)
public String addLength(
        @ApiParam(required=true, value="主题编号") @RequestParam String code,
        @ApiParam(required=true, value="要增加多少度量。10/20/50") @RequestParam int length) throws MyException {
        // TODO: ...
        return "";
}