opencsv

How to export data to csv file in Android?

被刻印的时光 ゝ 提交于 2019-11-28 22:24:56
问题 I created a csv file with the following format which I'm aiming to output to the device's sd card: Ship Name,Scientist Name,Scientist Email,Sample Volume,Sample Colour,Longitude,Latitude,Material,Date Each of the vales in the csv will be of type string except for the last value of date. The name of the csv file is AnalysisData.csv I've looked examples on Stackoverflow such as this, Export my data on CSV file from app android but this creates a new file which I don't want. I have already added

java.lang.NoClassDefFoundError: org/apache/commons/lang3/ObjectUtils

非 Y 不嫁゛ 提交于 2019-11-28 07:45:54
问题 I'm trying to code a program to read a CSV file and then make some stuff with it. I've searching a lot, and finally I found out this library. Some days ago I finished the code, and everything worked fine. Today I updated the library to the 4.0 v, and then a lot of warnings popped out. I made some testing and the part that fails is: public void LeerCSV(File CSVCat, File CSVProd){ //Creo un objeto de la clase FileReader que me hace falta para los CSVReader CSVReaderBuilder lectorCatBuilder =

Writing at the end of a file via opencsv

◇◆丶佛笑我妖孽 提交于 2019-11-28 07:13:29
问题 I'm using opencsv and want to write to a .csv file through multiple sessions. However every time I start a new CSVWriter the old file gets erased. Can I change the behavior of the CSVWriter to write at the end of the file instead of replacing the file? 回答1: There's an option in the FileWriter instead of the CSVWriter to append at the end of the file. This code makes it work: mFileWriter = new FileWriter(file_path, true); mCsvWriter = new CSVWriter(mFileWriter); 回答2: It doesn't seem possible

OpenCSV: How to create CSV file from POJO with custom column headers and custom column positions?

安稳与你 提交于 2019-11-27 20:31:56
I have created a MappingsBean class where all the columns of the CSV file are specified. Next I parse XML files and create a list of mappingbeans. Then I write that data into CSV file as report. I am using following annotations: public class MappingsBean { @CsvBindByName(column = "TradeID") @CsvBindByPosition(position = 0) private String tradeId; @CsvBindByName(column = "GWML GUID", required = true) @CsvBindByPosition(position = 1) private String gwmlGUID; @CsvBindByName(column = "MXML GUID", required = true) @CsvBindByPosition(position = 2) private String mxmlGUID; @CsvBindByName(column =

Parse CSV file containing a Unicode character using OpenCSV

≯℡__Kan透↙ 提交于 2019-11-27 20:12:30
I'm trying to parse a .csv file with OpenCSV in NetBeans 6.0.1. My file contains some Unicode character. When I write it in output the character appears in other form, like (HJ1'-E/;). When when I open this file in Notepad, it looks ok. The code that I used: CSVReader reader=new CSVReader(new FileReader("d:\\a.csv"),',','\'',1); String[] line; while((line=reader.readNext())!=null){ StringBuilder stb=new StringBuilder(400); for(int i=0;i<line.length;i++){ stb.append(line[i]); stb.append(";"); } System.out.println( stb); } First you need to know what encoding your file is in, such as UTF-8 or

OpenCSV - How to map selected columns to Java Bean regardless of order?

你离开我真会死。 提交于 2019-11-27 08:16:08
I have a CSV file with the following columns: id , fname , telephone , lname , address . I have a Person class with id , fname and lname data members. I want to map only these columns to Person object from a CSV file and discard telephone and address columns. How can I do this? The solution must scale as more columns are added in future. And should work regardless of column position. In an ideal solution user will only specify columns to read and it should just work. You can use HeaderColumnNameTranslateMappingStrategy . Lets assume your CSV has the following columns: Id , Fname , Telephone ,

Unwanted double quotes in generated csv file

▼魔方 西西 提交于 2019-11-27 03:03:48
问题 I have created a CSV file using the Java code below: String csv = rs.getString("UPLOAD_FOLDER_PATH")+".csv"; CSVWriter writer = new CSVWriter(new FileWriter(csv)); String [] filevalues = new String[filevaluesarray.size()]; filevalues=filevaluesarray.toArray(filevalues); writer.writeNext(filevalues); writer.close(); I am getting the CSV file, but the content of the file has unwanted double quotes. Eg. "ABC","123","KDNJ" I don't get from where these double quotes are added. 回答1: This worked for

setting a UTF-8 in java and csv file [duplicate]

戏子无情 提交于 2019-11-27 01:07:52
This question already has an answer here: How to add a UTF-8 BOM in java 5 answers I am using this code for add Persian words to a csv file via OpenCSV : String[] entries="\u0645 \u062E\u062F\u0627".split("#"); try{ CSVWriter writer=new CSVWriter(new OutputStreamWriter(new FileOutputStream("C:\\test.csv"), "UTF-8")); writer.writeNext(entries); writer.close(); } catch(IOException ioe){ ioe.printStackTrace(); } When I open the resulting csv file, in Excel, it contains "ứỶờịỆ" . Other programs such as notepad.exe don't have this problem, but all of my users are using MS Excel. Replacing OpenCSV

Parse CSV file containing a Unicode character using OpenCSV

♀尐吖头ヾ 提交于 2019-11-26 20:14:26
问题 I'm trying to parse a .csv file with OpenCSV in NetBeans 6.0.1. My file contains some Unicode character. When I write it in output the character appears in other form, like (HJ1'-E/;). When when I open this file in Notepad, it looks ok. The code that I used: CSVReader reader=new CSVReader(new FileReader("d:\\a.csv"),',','\'',1); String[] line; while((line=reader.readNext())!=null){ StringBuilder stb=new StringBuilder(400); for(int i=0;i<line.length;i++){ stb.append(line[i]); stb.append(";");

setting a UTF-8 in java and csv file [duplicate]

旧街凉风 提交于 2019-11-26 09:34:22
问题 This question already has an answer here: How to add a UTF-8 BOM in java 5 answers I am using this code for add Persian words to a csv file via OpenCSV: String[] entries=\"\\u0645 \\u062E\\u062F\\u0627\".split(\"#\"); try{ CSVWriter writer=new CSVWriter(new OutputStreamWriter(new FileOutputStream(\"C:\\\\test.csv\"), \"UTF-8\")); writer.writeNext(entries); writer.close(); } catch(IOException ioe){ ioe.printStackTrace(); } When I open the resulting csv file, in Excel, it contains \"ứỶờịỆ\" .