尝试更新DynamoDB表时，只更新分区键值。在尝试包含其余值时，会弹出以下错误。指向getter方法。
import android.util.Log;
import com.amazonaws.AmazonServiceException;
import com.amazonaws.mobileconnectors.dynamodbv2.dynamodbmapper.DynamoDBHashKey;
import com.amazonaws.mobileconnectors.dynamodbv2.dynamodbmapper.DynamoDBMapper;
import com.amazonaws.mobileconnectors.dynamodbv2.dynamodbmapper.DynamoDBTable;
import com.amazonaws.services.dynamodbv2.AmazonDynamoDBClient;
import com.amazonaws.services.dynamodbv2.model.DescribeTableRequest;
import com.amazonaws.services.dynamodbv2.model.DescribeTableResult;
import com.amazonaws.services.dynamodbv2.model.ResourceNotFoundException;
public class FeedbackDynamoDBManager {
private static final String TAG = "FeedbackDynamoDBManager";
public static String getTestTableStatus() {
try {
AmazonDynamoDBClient ddb = FeedbackActivity.clientManager
.ddb();
DescribeTableRequest request = new DescribeTableRequest()
.withTableName(Constants.FEEDBACK_TABLE);
DescribeTableResult result = ddb.describeTable(request);
String status = result.getTable().getTableStatus();
return status == null ? "" : status;
} catch (ResourceNotFoundException e) {
} catch (AmazonServiceException ex) {
FeedbackActivity.clientManager
.wipeCredentialsOnAuthError(ex);
}
return "";
}
public static void insertFeedback(FeedbackForm feedbackForm) {
AmazonDynamoDBClient fdb = FeedbackActivity.clientManager
.ddb();
DynamoDBMapper fMapper = new DynamoDBMapper(fdb);
try {
Log.d(TAG, "Inserting form");
fMapper.save(feedbackForm);
Log.d(TAG, "Form inserted");
} catch (AmazonServiceException ex) {
Log.e(TAG, "Error inserting form");
ex.printStackTrace();
FeedbackActivity.clientManager
.wipeCredentialsOnAuthError(ex);
}catch (Exception e){
Log.e("Feedback Form: ",e.toString());
e.printStackTrace();
}
}
@DynamoDBTable(tableName = Constants.FEEDBACK_TABLE)
public static class FeedbackForm {
private String formId;
private String bus;
private String comments;
private String ended_at;
private String route;
private String started_from;
private String travel_date;
@DynamoDBHashKey(attributeName = "form_id")
public String getFormId() {
return formId;
}
public void setFormId(String formId) {
this.formId = formId;
}
@DynamoDBHashKey(attributeName = "bus")
public String getBus() {
return bus;
}
public void setBus(String bus) {
this.bus = bus;
}
@DynamoDBHashKey(attributeName = "comments")
public String getComments() {
return comments;
}
public void setComments(String comments) {
this.comments = comments;
}
@DynamoDBHashKey(attributeName = "ended_at")
public String getEndedAt() {
return ended_at;
}
public void setEndedAt(String ended_at) {
this.ended_at = ended_at;
}
@DynamoDBHashKey(attributeName = "route")
public String getRoute() {
return route;
}
public void setRoute(String route) {
this.route = route;
}
@DynamoDBHashKey(attributeName = "started_from")
public String getStartedFrom() {
return started_from;
}
public void setStartedFrom(String started_from) {
this.started_from = started_from;
}
@DynamoDBHashKey(attributeName = "travel_date")
public String getTraveDate() {
return travel_date;
}
public void setTraveDate(String travel_date) {
this.travel_date = travel_date;
}
}
}
FeedbackDynamoDBManager.java
FeedbackDynamoDBManager.FeedbackForm feedbackForm = new FeedbackDynamoDBManager.FeedbackForm();
feedbackForm.setFormId(formId);
feedbackForm.setTraveDate(selectedDate);
feedbackForm.setComments(comments);
feedbackForm.setRoute(selectedRoute);
feedbackForm.setBus(selectedBus);
feedbackForm.setEndedAt(selectedEndLocation);
feedbackForm.setStartedFrom(selectedFromLocation);
FeedbackDynamoDBManager.insertFeedback(feedbackForm);
FeedbackActivity.java
03-15 14:39:47.040 11788-12278/com.iota.bus.institutebus E/AmazonClientManager: Error, wipeCredentialsOnAuthError calledcom.amazonaws.AmazonServiceException: The provided key element does not match the schema (Service: AmazonDynamoDB; Status Code: 400; Error Code: ValidationException; Request ID: 999LSFAJHJS999999D372C3LVVV4KQNSO5A99999999ASUAAJG)
E/FEEDBACK FORM: Data inserted!!!
[03-15 14:39:47.104 4531: 4531 E/ ]
[adb] handle_packet() t->online(1) p->msg.arg0(30963) p->msg.arg1(0) OPEN
[ 03-15 14:39:47.104 4531: 4531 E/ ]
[adb] handle the adb command, and the command = adb shell:cat /proc/net/xt_qtaguid/stats | grep 10369
[ 03-15 14:39:47.132 4531: 4531 E/ ]
[adb] cuurent command is A_CLSE
[ 03-15 14:39:47.412 4531: 4531 E/ ]
[adb] handle_packet() t->online(1) p->msg.arg0(30964) p->msg.arg1(0) OPEN
[ 03-15 14:39:47.412 4531: 4531 E/ ]
[adb] handle the adb command, and the command = adb shell:cat /proc/11788/stat
[ 03-15 14:39:47.430 4531: 4531 E/ ]
[adb] cuurent command is A_CLSE
[ 03-15 14:39:47.450 4531: 4531 E/ ]
[adb] handle_packet() t->online(1) p->msg.arg0(30965) p->msg.arg1(0) OPEN
[ 03-15 14:39:47.450 4531: 4531 E/ ]
[adb] handle the adb command, and the command = adb shell:cat /proc/stat
[ 03-15 14:39:47.467 4531: 4531 E/ ]
[adb] cuurent command is A_CLSE
[ 03-15 14:39:47.642 4531: 4531 E/ ]
[adb] handle_packet() t->online(1) p->msg.arg0(30966) p->msg.arg1(0) OPEN
[ 03-15 14:39:47.642 4531: 4531 E/ ]
[adb] handle the adb command, and the command = adb shell:cat /proc/net/xt_qtaguid/stats | grep 10369
[ 03-15 14:39:47.669 4531: 4531 E/ ]
[adb] cuurent command is A_CLSE
logcat
我在stackoverflow中发布的经验不多。请宽容:)。
编辑：评论除了form_id之外的getter。数据得到更新。否则logcat错误显示。
答案 0 :(得分：1)
第一个问题出在FeedbackForm上。所有属性都使用注释@DynamoDBHashKey定义。请更改非散列键字段下面提到的注释。您应该使用@DynamoDBAttribute作为普通属性。
@DynamoDBAttribute(attributeName = "comments")
public String getComments() {
return comments;
}