安卓json数据保存到assets

安卓json数据保存到assets,第1张

新建assets文件夹,并将json文件复制到此文件夹中

在main文件夹下新建assets文件,然后再assets文件中新建namelist.json文件夹,将json数据复制到test.json文件中。

2、访问json文件

try {

AssetManager assetManager = getAssets()// 获得assets资源管理器(assets中的文件无法直接访问,可以使用AssetManager访问)

InputStreamReader inputStreamReader = new InputStreamReader(assetManager.open("namelist.json"),"UTF-8")// 使用IO流读取json文件内容

BufferedReader br = new BufferedReader(inputStreamReader)

String line

StringBuilder builder = new StringBuilder()

while ((line = br.readLine())!=null){

builder.append(line)

}

br.close()

inputStreamReader.close()

JSONObject testJson = new JSONObject(builder.toString())// 从builder中读取了json中的数据。

// 直接传入JSONObject来构造一个实例

JSONArray array = testJson.getJSONArray("nameList")

Log.e("nameList",array.toString())

for (int i = 0i

strings[i] = array.getString(i)

}

} catch (IOException e) {

e.printStackTrace()

} catch (JSONException e) {

直接读写文件,再把读出来的文件内容格式化成json,再用JDBC、Mybatis或者其他框架将json数据存入数据库。

假设实体类是这样的:

public class ElectSet {

public String xueqi

public String xuenian

public String startTime

public String endTime

public int menshu

public String isReadDB

//{"xueqi":,"xuenian":,"startTime":,"endTime":,"renshu":,"isReadDB":}

public String getXueqi() {

return xueqi

}

public void setXueqi(String xueqi) {

this.xueqi = xueqi

}

public String getXuenian() {

return xuenian

}

public void setXuenian(String xuenian) {

this.xuenian = xuenian

}

public String getStartTime() {

return startTime

}

public void setStartTime(String startTime) {

this.startTime = startTime

}

public String getEndTime() {

return endTime

}

public void setEndTime(String endTime) {

this.endTime = endTime

}

public int getMenshu() {

return menshu

}

public void setMenshu(int menshu) {

this.menshu = menshu

}

public String getIsReadDB() {

return isReadDB

}

public void setIsReadDB(String isReadDB) {

this.isReadDB = isReadDB

}

}

有一个json格式的文件,存的信息如下:

Sets.json:

{"xuenian":"2007-2008","xueqi":"1","startTime":"2009-07-19 08:30","endTime":"2009-07-22 18:00","menshu":"10","isReadDB":"Y"}

具体 *** 作:

/*

* 取出文件内容,填充对象

*/

public ElectSet findElectSet(String path){

ElectSet electset=new ElectSet()

String sets=ReadFile(path)//获得json文件的内容

JSONObject jo=JSONObject.fromObject(sets)//格式化成json对象

//System.out.println("------------" jo)

//String name = jo.getString("xuenian")

//System.out.println(name)

electset.setXueqi(jo.getString("xueqi"))

electset.setXuenian(jo.getString("xuenian"))

electset.setStartTime(jo.getString("startTime"))

electset.setEndTime(jo.getString("endTime"))

electset.setMenshu(jo.getInt("menshu"))

electset.setIsReadDB(jo.getString("isReadDB"))

return electset

}

//设置属性,并保存

public boolean setElect(String path,String sets){

try {

writeFile(path,sets)

return true

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace()

return false

}

}

//读文件,返回字符串

public String ReadFile(String path){

File file = new File(path)

BufferedReader reader = null

String laststr = ""

try {

//System.out.println("以行为单位读取文件内容,一次读一整行:")

reader = new BufferedReader(new FileReader(file))

String tempString = null

int line = 1

//一次读入一行,直到读入null为文件结束

while ((tempString = reader.readLine()) != null) {

//显示行号

System.out.println("line " line ": " tempString)

laststr = laststr tempString

line

}

reader.close()

} catch (IOException e) {

e.printStackTrace()

} finally {

if (reader != null) {

try {

reader.close()

} catch (IOException e1) {

}

}

}

return laststr

}

将获取到的字符串,入库即可。


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原文地址: http://outofmemory.cn/sjk/9391280.html

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