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提交 9cfde9d0 编写于 作者: N niudongyao
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js-apis-data-datashare.md 

Signed-off-by: Nniudongyao <niudongyao@huawei.com>
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zh-cn/application-dev/reference/apis/js-apis-data-dataShare.md
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......@@ -34,6 +34,14 @@ createDataShareHelper(context: Context, uri: string, callback: AsyncCallback&lt;
| uri | string | 是 | 指示要连接的服务端应用的路径。 |
| callback | AsyncCallback&lt;[DataShareHelper](#datasharehelper)&gt; | 是 | 回调函数。当创建DataShareHelper实例成功，err为undefined，data为获取到的DataShareHelper实例；否则为错误对象。 |
**错误码：**
以下错误码的详细介绍请参见[数据共享错误码](../errorcodes/errorcode-datashare.md)。
| 错误码ID | 错误信息 |
| -------- | ---------------------------------------------------- |
| 15700010 | The dataShareHelper is not initialized successfully. |
**示例：**
```ts
......@@ -41,14 +49,18 @@ import Ability from '@ohos.application.Ability'
let uri = ("datashare:///com.samples.datasharetest.DataShare");
let dataShareHelper;
dataShare.createDataShareHelper(this.context, uri, (err, data) => {
if (err != undefined) {
console.info("createDataShareHelper failed, error message : " + err);
} else {
try {
dataShare.createDataShareHelper(this.context, uri, (err, data) => {
if (err != undefined) {
console.error(`createDataShareHelper error: code: ${err.code}, message: ${err.message}`);
return;
}
console.info("createDataShareHelper succeed, data : " + data);
dataShareHelper = data;
}
});
});
} catch (err) {
console.error(`createDataShareHelper error: code: ${err.code}, message: ${err.message}`);
};
```
## dataShare.createDataShareHelper
......@@ -72,6 +84,14 @@ createDataShareHelper(context: Context, uri: string): Promise&lt;DataShareHelper
| -------------------------------------------------- | -------------------------------------- |
| Promise&lt;[DataShareHelper](#datasharehelper)&gt; | Promise对象。返回DataShareHelper实例。 |
**错误码：**
以下错误码的详细介绍请参见[数据共享错误码](../errorcodes/errorcode-datashare.md)。
| 错误码ID | 错误信息 |
| -------- | ---------------------------------------------------- |
| 15700010 | The dataShareHelper is not initialized successfully. |
**示例：**
```ts
......@@ -79,12 +99,16 @@ import Ability from '@ohos.application.Ability'
let uri = ("datashare:///com.samples.datasharetest.DataShare");
let dataShareHelper;
dataShare.createDataShareHelper(this.context, uri).then((data) => {
console.info("createDataShareHelper succeed, data : " + data);
dataShareHelper = data;
}).catch((err) => {
console.info("createDataShareHelper failed, error message : " + err);
})
try {
dataShare.createDataShareHelper(this.context, uri).then((data) => {
console.info("createDataShareHelper succeed, data : " + data);
dataShareHelper = data;
}). catch((err) => {
console.error(`createDataShareHelper error: code: ${err.code}, message: ${err.message}`);
});
} catch (err) {
console.error(`createDataShareHelper error: code: ${err.code}, message: ${err.message}`);
};
```
## DataShareHelper
......@@ -171,13 +195,17 @@ const valueBucket = {
"age": 22,
"salary": 200.5,
}
dataShareHelper.insert(uri, valueBucket, (err, data) => {
if (err != undefined) {
console.log("insert failed, error message : " + err);
}else{
console.log("insert succeed, data : " + data);
}
});
try {
dataShareHelper.insert(uri, valueBucket, (err, data) => {
if (err != undefined) {
console.error(`insert error: code: ${err.code}, message: ${err.message}`);
return;
}
console.info("insert succeed, data : " + data);
});
} catch (err) {
console.error(`insert error: code: ${err.code}, message: ${err.message}`);
};
```
### insert
......@@ -211,11 +239,15 @@ const valueBucket = {
"age": 221,
"salary": 20.5,
}
dataShareHelper.insert(uri, valueBucket).then((data) => {
console.log("insert succeed, data : " + data);
}).catch((err) => {
console.log("insert failed, error message : " + err);
});
try {
dataShareHelper.insert(uri, valueBucket).then((data) => {
console.log("insert succeed, data : " + data);
}). catch((err) => {
console.error(`insert error: code: ${err.code}, message: ${err.message}`);
});
} catch (err) {
console.error(`insert error: code: ${err.code}, message: ${err.message}`);
};
```
### delete
......@@ -243,13 +275,17 @@ import dataSharePredicates from '@ohos.data.dataSharePredicates'
let uri = ("datashare:///com.samples.datasharetest.DataShare");
let da = new dataSharePredicates.DataSharePredicates();
da.equalTo("name", "ZhangSan");
dataShareHelper.delete(uri, da, (err, data) => {
if (err != undefined) {
console.log("delete failed, error message : " + err);
}else{
console.log("delete succeed, data : " + data);
}
});
try {
dataShareHelper.delete(uri, da, (err, data) => {
if (err != undefined) {
console.error(`delete error: code: ${err.code}, message: ${err.message}`);
return;
}
console.info("delete succeed, data : " + data);
});
} catch (err) {
console.error(`delete error: code: ${err.code}, message: ${err.message}`);
};
```
### delete
......@@ -282,11 +318,15 @@ import dataSharePredicates from '@ohos.data.dataSharePredicates'
let uri = ("datashare:///com.samples.datasharetest.DataShare");
let da = new dataSharePredicates.DataSharePredicates();
da.equalTo("name", "ZhangSan");
dataShareHelper.delete(uri, da).then((data) => {
console.log("delete succeed, data : " + data);
}).catch((err) => {
console.log("delete failed, error message : " + err);
});
try {
dataShareHelper.delete(uri, da).then((data) => {
console.log("delete succeed, data : " + data);
}). catch((err) => {
console.error(`delete error: code: ${err.code}, message: ${err.message}`);
});
} catch (err) {
console.error(`delete error: code: ${err.code}, message: ${err.message}`);
};
```
### query
......@@ -316,13 +356,17 @@ let uri = ("datashare:///com.samples.datasharetest.DataShare");
let columns = ["*"];
let da = new dataSharePredicates.DataSharePredicates();
da.equalTo("name", "ZhangSan");
dataShareHelper.query(uri, da, columns, (err, data) => {
if (err != undefined) {
console.log("query failed, error message : " + err);
}else{
try {
dataShareHelper.query(uri, da, columns, (err, data) => {
if (err != undefined) {
console.error(`query error: code: ${err.code}, message: ${err.message}`);
return;
}
console.log("query succeed, rowCount : " + data.rowCount);
}
});
});
} catch (err) {
console.error(`query error: code: ${err.code}, message: ${err.message}`);
};
```
### query
......@@ -357,11 +401,15 @@ let uri = ("datashare:///com.samples.datasharetest.DataShare");
let columns = ["*"];
let da = new dataSharePredicates.DataSharePredicates();
da.equalTo("name", "ZhangSan");
dataShareHelper.query(uri, da, columns).then((data) => {
console.log("query succeed, rowCount : " + data.rowCount);
}).catch((err) => {
console.log("query failed, error message : " + err);
});
try {
dataShareHelper.query(uri, da, columns).then((data) => {
console.log("query succeed, rowCount : " + data.rowCount);
}). catch((err) => {
console.error(`query error: code: ${err.code}, message: ${err.message}`);
});
} catch (err) {
console.error(`query error: code: ${err.code}, message: ${err.message}`);
};
```
### update
......@@ -396,13 +444,17 @@ const va = {
"salary": 20.5,
}
dataShareHelper.update(uri, da, va, (err, data) => {
if (err != undefined) {
console.log("update failed, error message : " + err);
}else{
try {
dataShareHelper.update(uri, da, va, (err, data) => {
if (err != undefined) {
console.error(`update error: code: ${err.code}, message: ${err.message}`);
return;
}
console.log("update succeed, data : " + data);
}
});
});
} catch (err) {
console.error(`update error: code: ${err.code}, message: ${err.message}`);
};
```
### update
......@@ -442,11 +494,15 @@ const va = {
"salary": 20.5,
}
dataShareHelper.update(uri, da, va).then((data) => {
console.log("update succeed, data : " + data);
}).catch((err) => {
console.log("update failed, error message : " + err);
});
try {
dataShareHelper.update(uri, da, va).then((data) => {
console.log("update succeed, data : " + data);
}). catch((err) => {
console.error(`update error: code: ${err.code}, message: ${err.message}`);
});
} catch (err) {
console.error(`update error: code: ${err.code}, message: ${err.message}`);
};
```
### batchInsert
......@@ -473,13 +529,17 @@ let uri = ("datashare:///com.samples.datasharetest.DataShare");
let vbs = new Array({"name": "roe11", "age": 21, "salary": 20.5,},
{"name": "roe12", "age": 21, "salary": 20.5,},
{"name": "roe13", "age": 21, "salary": 20.5,})
dataShareHelper.batchInsert(uri, vbs, (err, data) => {
if (err != undefined) {
console.log("batchInsert failed, error message : " + err);
}else{
try {
dataShareHelper.batchInsert(uri, vbs, (err, data) => {
if (err != undefined) {
console.error(`batchInsert error: code: ${err.code}, message: ${err.message}`);
return;
}
console.log("batchInsert succeed, data : " + data);
}
});
});
} catch (err) {
console.error(`batchInsert error: code: ${err.code}, message: ${err.message}`);
};
```
### batchInsert
......@@ -511,11 +571,15 @@ let uri = ("datashare:///com.samples.datasharetest.DataShare");
let vbs = new Array({"name": "roe11", "age": 21, "salary": 20.5,},
{"name": "roe12", "age": 21, "salary": 20.5,},
{"name": "roe13", "age": 21, "salary": 20.5,})
dataShareHelper.batchInsert(uri, vbs).then((data) => {
console.log("batchInsert succeed, data : " + data);
}).catch((err) => {
console.log("batchInsert failed, error message : " + err);
});
try {
dataShareHelper.batchInsert(uri, vbs).then((data) => {
console.log("batchInsert succeed, data : " + data);
}). catch((err) => {
console.error(`batchInsert error: code: ${err.code}, message: ${err.message}`);
});
} catch (err) {
console.error(`batchInsert error: code: ${err.code}, message: ${err.message}`);
};
```
### normalizeUri
......@@ -691,4 +755,4 @@ notifyChange(uri: string): Promise&lt;void&gt;
import Ability from '@ohos.application.Ability'
let uri = ("datashare:///com.samples.datasharetest.DataShare");
dataShareHelper.notifyChange(uri);
```
```
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