小编Ree*_*ziz的帖子

我更新了android studio 2.3并且有一个bug,gradle没有构建,它一直给我所有项目的错误.

Error:Failed to open zip file.
Gradle's dependency cache may be corrupt (this sometimes occurs after a network connection timeout.)
<a href="syncProject">Re-download dependencies and sync project (requires network)</a>
<a href="syncProject">Re-download dependencies and sync project (requires network)</a>

我已经搜索过一个解决方案,但还没找到.我试过了:

Invalidate Caches / Restart...

但一切都没有改变.

我是RetrofitLibrary的新手,我曾经使用Volley我试图在对象内解析数组但是我不知道怎么做这里是我的Json响应

  {
        "response": {
            "code": "1",
            "success": true,
            "customers": [
                {
                    "id": 1,
                    "name": "reem",
                    "customer_type": "1",
                    "address": "45????",
                    "mobile_no": "05684412211",
                    "phone_no": "414511555",
                    "created_at": "2018-07-30 08:26:48",
                    "updated_at": "2018-07-30 08:26:48"
                }
            ]
        }
    }

我想从响应响应中获取客户数组,这里是客户模型:

public class Customer {

    @SerializedName("id")
    private Integer id;
    @SerializedName("customer_type")
    private Integer customer_type;
    @SerializedName("name")
    private String name;
    @SerializedName("address")
    private String address;
    @SerializedName("mobile_no")
    private String mobile_no;
    @SerializedName("phone_no")
    private String phone_no;

    public Customer(Integer id, Integer customer_type, String name, String address, String mobile_no, String phone_no) {
        this.id = …

大家好我是Laravel开发的新手,我想知道如何在两个表之间创建子查询,例如,我想执行这个查询:

SELECT * FROM `contracts` 
WHERE `trainer_id` = '1' OR id IN (
    SELECT `contract_id` FROM `trainees` 
    WHERE `user_id` = '1'
)

我测试它并且它可以正常工作,我想知道如何在Laravel雄辩中写出它