我正在通过以下 URL 编写数据可视化教程：
我收到了这个错误，我完全不确定是什么原因造成的。
com.google.gdata.util.AuthenticationException：与登录 URI 连接时出错 身份验证中的错误
到目前为止，这是我的代码：
MyRandomNumbers 文件
SimpleSpreadsheetManager sm;
String sUrl = "t6mq_WLV5c5uj6mUNSryBIA";
String googleUser = "xxxxxxx";
String googlePass = "xxxxxxx";
void setup() {
size(800,800);
background(0);
smooth();
//Ask for list of numbers
int[] numbers = getNumbers();
fill(255,40);
noStroke();
for(int i = 0; i < numbers.length; i++){
ellipse(numbers[i] * 8, width/2, 8,8);
}
};
void draw() {
};
谷歌代码文件
//Function to get an Array of integers from a Google Spreadsheet
int[] getNumbers() {
println("Asking Google for numbers...");
sm = new SimpleSpreadsheetManager();
sm.init("RandomNumbers", googleUser, googlePass);
sm.fetchSheetByKey(sUrl, 0);
int n = sm.currentListEntries.size();
int[] returnArray = new int[n];
for (int i = 0; i < n; i++) {
returnArray[i] = int(sm.getCellValue("Number", i));
};
println("Got " + n + " numbers.");
return(returnArray);
};
//Function to generate a random list of integers
int[] getRandomNumbers(int c) {
int[] returnArray = new int[c];
for (int i = 0; i < c; i++) {
returnArray[i] = ceil(random(0,99));
};
return(returnArray);
};
简单电子表格管理器
public class SimpleSpreadsheetManager {
SpreadsheetService myService;
SpreadsheetEntry spreadsheetEntry;
SpreadsheetFeed sheetFeed;
WorksheetEntry worksheetEntry;
List spreadsheets;
String user;
String pass;
ListFeed currentListFeed;
CellFeed currentCellFeed;
List currentCells;
List currentListEntries;
int currentTotalRows;
int currentTotalCols;
String currentTitle;
String[] tagArray;
URL listFeedUrl;
SimpleSpreadsheetManager() {
};
/*
INIT FUNCTION
Opens session, uses username & password for authentication
*/
void init(String sessionName, String u, String p) {
user = u;
pass = p;
myService = new SpreadsheetService(sessionName);
try {
myService.setUserCredentials(user, pass);
}
catch (Exception e) {
println(e + " ERROR IN AUTHENTICATION");
};
};
/*
FETCH SHEET BY KEY
Gets a spreadsheet listfeed using the unique key - this is in the URL of the spreadsheet
The retrieved sheet is both returned and set as the currentListFeed
*/
ListFeed fetchSheetByKey(String k, int wi) {
ListFeed f = new ListFeed();
CellFeed cf = new CellFeed();
WorksheetFeed w = new WorksheetFeed();
//GET WORKSHEETS FEED
try {
URL worksheetFeedUrl = new URL("https://spreadsheets.google.com/feeds/worksheets/" + k + "/private/full");
WorksheetFeed wf2 = new WorksheetFeed();
w = myService.getFeed(worksheetFeedUrl, wf2.getClass());
}
catch(Exception e) {
println("ERROR RETRIEVING WORKSHEET FEED");
};
List worksheets = w.getEntries();
WorksheetEntry we = (WorksheetEntry) worksheets.get(wi);
println("RETRIEVED WORKSHEET " + we.getTitle().getPlainText());
//GET LIST FEED URL
try {
listFeedUrl = we.getListFeedUrl();//new URL("http://spreadsheets.google.com/feeds/list/" + k + "/od6/private/full");
ListFeed lf2 = new ListFeed();
f = myService.getFeed(listFeedUrl, lf2.getClass());
}
catch(Exception e) {
println("ERROR RETRIEVING LIST FEED");
};
//GET CELL FEED
try {
URL cellFeedUrl = we.getCellFeedUrl();//new URL("http://spreadsheets.google.com/feeds/cells/" + k + "/od6/private/full");
CellFeed lf2 = new CellFeed();
cf = myService.getFeed(cellFeedUrl, lf2.getClass());
}
catch(Exception e) {
println("ERROR RETRIEVING LIST FEED");
};
currentListFeed = f;
currentCellFeed = cf;
currentCells = cf.getEntries();
currentListEntries = f.getEntries();
currentTitle = we.getTitle().getPlainText();
currentTotalRows = currentListEntries.size();
if (currentListEntries.size() > 0) {
ListEntry le = (ListEntry) currentListEntries.get(0);
currentTotalCols = le.getCustomElements().getTags().size();
Set<String> tags = le.getCustomElements().getTags();
tagArray = new String[tags.size()];
tagArray = tags.toArray(tagArray);
};
return(f);
};
/*
GET CELL VALUE
Returns the value held in an individual sheet cell.
*/
String getCellValue(int c, int r) {
ListEntry le = (ListEntry) currentListEntries.get(r);
Set<String> tags = le.getCustomElements().getTags();
String[] tagArray = new String[tags.size()];
tagArray = tags.toArray(tagArray);
return(le.getCustomElements().getValue(tagArray[c]));
};
String getCellValue(String tag, int r) {
ListEntry le = (ListEntry) currentListEntries.get(r);
return(le.getCustomElements().getValue(tag));
};
void setCellValue(String tag, int r, String val) {
ListEntry le = (ListEntry) currentListEntries.get(r);
le.getCustomElements().setValueLocal(tag, val);
try {
ListEntry updatedRow = le.update();
}
catch (Exception e){
};
};
void setNewCellValue(String tag, int r, String val) {
ListEntry le = new ListEntry();
try {
le.getCustomElements().setValueLocal(tag, val);
ListEntry insertedRow = myService.insert(listFeedUrl, le);
ListEntry updatedRow = insertedRow.update();
}
catch (Exception e){
};
};
};
有任何想法吗？