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73 lines
2.2 KiB
Markdown
73 lines
2.2 KiB
Markdown
# 业务参数校验
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业务参数校验采用JSR-303方式，关于JSR-303介绍可以参考这篇博文：[JSR 303 - Bean Validation 介绍及最佳实践](https://www.ibm.com/developerworks/cn/java/j-lo-jsr303/)
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在参数中使用注解即可，框架会自动进行验证。如下面一个添加商品接口，它的参数是GoodsParam
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```java
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@ApiMapping(value = "goods.add")
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public void addGoods(GoodsParam param) {
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...
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}
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```
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在GoodsParam中添加JSR-303注解:
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```java
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@Data
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public class GoodsParam {
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@NotEmpty(message = "商品名称不能为空")
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private String goods_name;
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}
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```
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如果不传商品名称则返回
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```
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{"goods_add_response":{"msg":"Success","code":"10000","sub_msg":"商品名称不能为空","sub_code":"isv.invalid-parameter"},"sign":"Eh3Z5CxDCHsb4MyYFVxsPSmBpwVi1LISJdOkrzglxXoqG7RVyEOt4ef1kNpznUvMI3FDQU1suR7Rsmx6NjGdEVS6NSH2Kt0d8TFBRpLhWz8hApnxOtgzqMqbYeMuJie7X5gF6m8hTnvuuxF21IrkixMe+lyBcXw7dk0C3w1SwdEZkHQ+xC+M4bLqAZt5/3kl79/FWSMFJWHiZmg5YeEi8e8XhYCNcz+xlJRJL0x2Y87fFxqSY0UYWNxbQHgdVI8xRfn1n31nzkcLxiAtTh4LPtNRrG7w7absK/C1Oi/vczuBlFeq2EWUsYVWOVpKiJifUwvYVUUsztSLElzplzOjbg=="}
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```
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## 参数校验国际化
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国际化的配置方式如下：
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```java
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@NotEmpty(message = "{goods.remark.notNull}")
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private String goods_remark;
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```
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国际化资源文件`bizerror_en.properties`中添加：
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```
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goods.remark.notNull=The goods_remark can not be null
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```
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bizerror_zh_CN.properties中添加：
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```
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# 商品备注不能为空
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goods.remark.notNull=\u5546\u54c1\u5907\u6ce8\u4e0d\u80fd\u4e3a\u7a7a
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```
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## 参数校验国际化传参
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下面校验商品评论的长度，要求大于等于3且小于等于20。数字3和20要填充到国际化资源中去。
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```
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// 传参的格式：{xxx}=value1,value2...
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@Length(min = 3, max = 20, message = "{goods.comment.length}=3,20")
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private String goods_comment;
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```
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bizerror_en.properties:
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```
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goods.comment.length=The goods_comment length must >= {0} and <= {1}
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```
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bizerror_zh_CN.properties中添加：
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```
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# 商品评论长度必须在{0}和{1}之间
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goods.comment.length=\u5546\u54c1\u8bc4\u8bba\u957f\u5ea6\u5fc5\u987b\u5728{0}\u548c{1}\u4e4b\u95f4
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```
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这样value1，value2会分别填充到{0},{1}中
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