下面列出了com.fasterxml.jackson.core.JsonGenerator#writeBooleanField ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
/**
* Add a GraphBoundingBox to an ObjectNode.
*
* @param node The ObjectNode to write the bounding box to.
* @param label The label of the bounding box node.
* @param bb The bounding box to be written.
*/
private static void addBoundingBox(final JsonGenerator jg, final String label, final BoundingBox bb) {
try {
jg.writeObjectFieldStart(label);
jg.writeBooleanField("is_empty", bb.isEmpty());
if (!bb.isEmpty()) {
addVector(jg, "min", bb.getMin());
addVector(jg, "max", bb.getMax());
addVector(jg, "min2", bb.getMin2());
addVector(jg, "max2", bb.getMax2());
}
jg.writeEndObject();
} catch (IOException ex) {
Exceptions.printStackTrace(ex);
}
}
@Override
public void serialize(OAuth2Exception value, JsonGenerator jgen, SerializerProvider provider) throws IOException,
JsonProcessingException {
jgen.writeStartObject();
jgen.writeStringField("code", value.getOAuth2ErrorCode());
jgen.writeStringField("message", value.getMessage());
jgen.writeBooleanField("success", false);
jgen.writeBooleanField("error", true);
if (value.getAdditionalInformation()!=null) {
for (Entry<String, String> entry : value.getAdditionalInformation().entrySet()) {
String key = entry.getKey();
String add = entry.getValue();
jgen.writeStringField(key, add);
}
}
jgen.writeEndObject();
}
/**
* Write property and its attributes as json format to given
* {@link JsonGenerator}.
*
* @param jsonGen json writer
* @param config configuration
* @param name property name
* @throws IOException
*/
private static void appendJSONProperty(JsonGenerator jsonGen,
Configuration config, String name, ConfigRedactor redactor)
throws IOException {
// skip writing if given property name is empty or null
if(!Strings.isNullOrEmpty(name) && jsonGen != null) {
jsonGen.writeStartObject();
jsonGen.writeStringField("key", name);
jsonGen.writeStringField("value",
redactor.redact(name, config.get(name)));
jsonGen.writeBooleanField("isFinal",
config.finalParameters.contains(name));
String[] resources = config.updatingResource != null ?
config.updatingResource.get(name) : null;
String resource = UNKNOWN_RESOURCE;
if (resources != null && resources.length > 0) {
resource = resources[0];
}
jsonGen.writeStringField("resource", resource);
jsonGen.writeEndObject();
}
}
private static void writeLeafDetail(final JsonGenerator jg, final AlarmTreeLeaf item) throws Exception
{
jg.writeStringField(JsonTags.DESCRIPTION, item.getDescription());
if (! item.isEnabled())
jg.writeBooleanField(JsonTags.ENABLED, false);
if (! item.isLatching())
jg.writeBooleanField(JsonTags.LATCHING, false);
if (! item.isAnnunciating())
jg.writeBooleanField(JsonTags.ANNUNCIATING, false);
if (item.getDelay() > 0)
jg.writeNumberField(JsonTags.DELAY, item.getDelay());
if (item.getCount() > 0)
jg.writeNumberField(JsonTags.COUNT, item.getCount());
if (! item.getFilter().isEmpty())
jg.writeStringField(JsonTags.FILTER, item.getFilter());
}
private static void writeRefJson(Node ref, Binding binding, JsonGenerator json) throws IOException {
if (binding.getFile() != null) {
String path = binding.qname.replace(".", "/").replace("%20", ".");
String key = ref.file + ":" + ref.start;
if (!seenRef.contains(key)) {
seenRef.add(key);
if (binding.start >= 0 && ref.start >= 0 && !binding.isBuiltin()) {
json.writeStartObject();
json.writeStringField("sym", path);
json.writeStringField("file", ref.file);
json.writeNumberField("start", ref.start);
json.writeNumberField("end", ref.end);
json.writeBooleanField("builtin", binding.isBuiltin());
json.writeEndObject();
}
}
}
}
static void toJson(Types.StructType struct, JsonGenerator generator) throws IOException {
generator.writeStartObject();
generator.writeStringField(TYPE, STRUCT);
generator.writeArrayFieldStart(FIELDS);
for (Types.NestedField field : struct.fields()) {
generator.writeStartObject();
generator.writeNumberField(ID, field.fieldId());
generator.writeStringField(NAME, field.name());
generator.writeBooleanField(REQUIRED, field.isRequired());
generator.writeFieldName(TYPE);
toJson(field.type(), generator);
generator.writeEndObject();
}
generator.writeEndArray();
generator.writeEndObject();
}
private void appendEnumTypes(JsonGenerator json, List<EdmEnumType> enumTypes)
throws SerializerException, IOException {
for (EdmEnumType enumType : enumTypes) {
json.writeObjectFieldStart(enumType.getName());
json.writeStringField(KIND, Kind.EnumType.name());
json.writeBooleanField(IS_FLAGS, enumType.isFlags());
json.writeStringField(UNDERLYING_TYPE, getFullQualifiedName(enumType.getUnderlyingType()));
for (String memberName : enumType.getMemberNames()) {
EdmMember member = enumType.getMember(memberName);
if (member.getValue() != null) {
json.writeStringField(memberName, member.getValue());
}
appendAnnotations(json, member, memberName);
}
json.writeEndObject();
}
}
public static Response getJWTRenewSuccessResponse(String jwt) throws IOException {
try (StringWriter sw = new StringWriter()) {
JsonGenerator jsonGenerator = JSON_FACTORY.createGenerator(sw);
jsonGenerator.writeStartObject();
jsonGenerator.writeBooleanField("executed", true);
jsonGenerator.writeStringField("access_token", jwt);
jsonGenerator.writeStringField("token_type", "Bearer");
jsonGenerator.writeEndObject();
jsonGenerator.flush();
jsonGenerator.close();
return Response.status(Response.Status.OK)
.header("Authorization", "Bearer " + jwt)
.entity(sw.toString())
.build();
}
}
private void appendGroupByItemsJson(JsonGenerator json, final List<GroupByItem> groupByItems) throws IOException {
json.writeStartArray();
for (final GroupByItem groupByItem : groupByItems) {
json.writeStartObject();
if (!groupByItem.getPath().isEmpty()) {
json.writeFieldName("path");
appendURIResourceParts(json, groupByItem.getPath());
}
json.writeBooleanField("isRollupAll", groupByItem.isRollupAll());
if (!groupByItem.getRollup().isEmpty()) {
json.writeFieldName("rollup");
appendGroupByItemsJson(json, groupByItem.getRollup());
}
json.writeEndObject();
}
json.writeEndArray();
}
@Override
public void writeObject(final Attribute attr, final int elementId, final JsonGenerator jsonGenerator,
final GraphReadMethods graph, final GraphByteWriter byteWriter, final boolean verbose) throws IOException {
if (verbose || !graph.isDefaultValue(attr.getId(), elementId)) {
final NamedSelectionState state = (NamedSelectionState) graph.getObjectValue(attr.getId(), elementId);
if (state == null) {
jsonGenerator.writeNullField(attr.getName());
} else {
jsonGenerator.writeObjectFieldStart(attr.getName());
// Note the number of selections being saved:
jsonGenerator.writeNumberField(QUANTITY, state.getSelectionCount());
// Write the currently allocated state list:
jsonGenerator.writeNumberField(ALLOCATED, convertFromBitSet(state.getCurrentlyAllocated()));
// Write the current dim and select result states:
jsonGenerator.writeBooleanField(DIM_OTHERS, state.isDimOthers());
jsonGenerator.writeBooleanField(SELECT_RESULTS, state.isSelectResults());
jsonGenerator.writeArrayFieldStart(SELECTION);
for (NamedSelection item : state.getNamedSelections()) {
addSelection(jsonGenerator, item);
}
jsonGenerator.writeEndArray();
jsonGenerator.writeEndObject();
}
}
}
@Override
public void serialize(CandlestickEvent candlestickEvent, JsonGenerator gen, SerializerProvider serializers) throws IOException {
gen.writeStartObject();
// Write header
gen.writeStringField("e", candlestickEvent.getEventType());
gen.writeNumberField("E", candlestickEvent.getEventTime());
gen.writeStringField("s", candlestickEvent.getSymbol());
// Write candlestick data
gen.writeObjectFieldStart("k");
gen.writeNumberField("t", candlestickEvent.getOpenTime());
gen.writeNumberField("T", candlestickEvent.getCloseTime());
gen.writeStringField("i", candlestickEvent.getIntervalId());
gen.writeNumberField("f", candlestickEvent.getFirstTradeId());
gen.writeNumberField("L", candlestickEvent.getLastTradeId());
gen.writeStringField("o", candlestickEvent.getOpen());
gen.writeStringField("c", candlestickEvent.getClose());
gen.writeStringField("h", candlestickEvent.getHigh());
gen.writeStringField("l", candlestickEvent.getLow());
gen.writeStringField("v", candlestickEvent.getVolume());
gen.writeNumberField("n", candlestickEvent.getNumberOfTrades());
gen.writeBooleanField("x", candlestickEvent.getBarFinal());
gen.writeStringField("q", candlestickEvent.getQuoteAssetVolume());
gen.writeStringField("V", candlestickEvent.getTakerBuyBaseAssetVolume());
gen.writeStringField("Q", candlestickEvent.getTakerBuyQuoteAssetVolume());
gen.writeEndObject();
}
@Override
public void writeObject(final Attribute attribute, final int elementId, final JsonGenerator jsonGenerator, final GraphReadMethods graph, final GraphByteWriter byteWriter, final boolean verbose) throws IOException {
if (verbose || !graph.isDefaultValue(attribute.getId(), elementId)) {
final TableState state = graph.getObjectValue(attribute.getId(), elementId);
if (state == null) {
jsonGenerator.writeNullField(attribute.getName());
} else {
jsonGenerator.writeObjectFieldStart(attribute.getName());
jsonGenerator.writeNumberField("posx", state.viewPosition.x);
jsonGenerator.writeNumberField("posy", state.viewPosition.y);
jsonGenerator.writeBooleanField(SELECTED_ONLY, state.selectedOnly);
jsonGenerator.writeArrayFieldStart("columns");
for (final ColumnState cs : state.columns) {
jsonGenerator.writeStartObject();
jsonGenerator.writeStringField(LABEL, cs.label);
jsonGenerator.writeStringField("segment", cs.segment.toString());
jsonGenerator.writeNumberField("width", cs.width);
jsonGenerator.writeEndObject();
}
jsonGenerator.writeEndArray();
jsonGenerator.writeArrayFieldStart("sortOrder");
for (final String so : state.sortOrder) {
jsonGenerator.writeString(so);
}
jsonGenerator.writeEndArray();
jsonGenerator.writeEndObject();
}
}
}
@Override
public void serialize(ClassEntity value, JsonGenerator g, SerializerProvider provider) throws IOException {
g.writeStartObject();
g.writeStringField("id", value.getId());
g.writeStringField("value", value.getValue());
g.writeBooleanField("complex", value.isComplex());
g.writeEndObject();
}
@Override
public int serializeOnJackson(PrefixConfig object, JsonGenerator jacksonSerializer) throws
Exception {
jacksonSerializer.writeStartObject();
int fieldCount=0;
// Serialized Field:
// field defaultCountry (mapped with "defaultCountry")
if (object.defaultCountry!=null) {
fieldCount++;
jacksonSerializer.writeStringField("defaultCountry", object.defaultCountry);
}
// field dialogTimeout (mapped with "dialogTimeout")
fieldCount++;
jacksonSerializer.writeNumberField("dialogTimeout", object.dialogTimeout);
// field dualBillingPrefix (mapped with "dualBillingPrefix")
if (object.dualBillingPrefix!=null) {
fieldCount++;
jacksonSerializer.writeStringField("dualBillingPrefix", object.dualBillingPrefix);
}
// field enabled (mapped with "enabled")
fieldCount++;
jacksonSerializer.writeBooleanField("enabled", object.enabled);
// field id (mapped with "id")
fieldCount++;
jacksonSerializer.writeNumberField("id", object.id);
jacksonSerializer.writeEndObject();
return fieldCount;
}
private void writeHistogram(JsonGenerator jgen, Node node) throws IOException {
final ServiceType serviceType = node.getServiceType();
final NodeHistogram nodeHistogram = node.getNodeHistogram();
// FIXME isn't this all ServiceTypes that can be a node?
if (serviceType.isWas() || serviceType.isTerminal() || serviceType.isUnknown() || serviceType.isUser() || serviceType.isQueue() || serviceType.isAlias()) {
Histogram applicationHistogram = nodeHistogram.getApplicationHistogram();
if (applicationHistogram == null) {
jgen.writeBooleanField("hasAlert", false); // for go.js
} else {
jgen.writeNumberField("totalCount", applicationHistogram.getTotalCount()); // for go.js
jgen.writeNumberField("errorCount", applicationHistogram.getTotalErrorCount());
jgen.writeNumberField("slowCount", applicationHistogram.getSlowCount());
if (applicationHistogram.getTotalCount() == 0) {
jgen.writeBooleanField("hasAlert", false); // for go.js
} else {
long error = applicationHistogram.getTotalErrorCount() / applicationHistogram.getTotalCount();
if (error * 100 > 10) {
jgen.writeBooleanField("hasAlert", true); // for go.js
} else {
jgen.writeBooleanField("hasAlert", false); // for go.js
}
}
}
if (applicationHistogram == null) {
writeEmptyObject(jgen, "histogram");
} else {
jgen.writeObjectField("histogram", applicationHistogram);
}
if (NodeType.DETAILED == node.getNodeType()) {
Map<String, Histogram> agentHistogramMap = nodeHistogram.getAgentHistogramMap();
if (agentHistogramMap == null) {
writeEmptyObject(jgen, "agentHistogram");
} else {
jgen.writeObjectField("agentHistogram", agentHistogramMap);
}
}
} else {
jgen.writeBooleanField("hasAlert", false); // for go.js
}
// FIXME isn't this all ServiceTypes that can be a node?
if (serviceType.isWas() || serviceType.isUser() || serviceType.isTerminal() || serviceType.isUnknown() || serviceType.isQueue() || serviceType.isAlias()) {
List<ResponseTimeViewModel> applicationTimeSeriesHistogram = nodeHistogram.getApplicationTimeHistogram();
if (applicationTimeSeriesHistogram == null) {
writeEmptyArray(jgen, "timeSeriesHistogram");
} else {
jgen.writeObjectField("timeSeriesHistogram", applicationTimeSeriesHistogram);
}
if (NodeType.DETAILED == node.getNodeType()) {
AgentResponseTimeViewModelList agentTimeSeriesHistogram = nodeHistogram.getAgentTimeHistogram();
jgen.writeObject(agentTimeSeriesHistogram);
}
}
}
public static void main(String[] args) throws IOException {
Employee emp = JacksonObjectMapperExample.createEmployee();
JsonGenerator jsonGenerator = new JsonFactory()
.createGenerator(new FileOutputStream("stream_emp.txt"));
//for pretty printing
jsonGenerator.setPrettyPrinter(new DefaultPrettyPrinter());
jsonGenerator.writeStartObject(); // start root object
jsonGenerator.writeNumberField("id", emp.getId());
jsonGenerator.writeStringField("name", emp.getName());
jsonGenerator.writeBooleanField("permanent", emp.isPermanent());
jsonGenerator.writeObjectFieldStart("address"); //start address object
jsonGenerator.writeStringField("street", emp.getAddress().getStreet());
jsonGenerator.writeStringField("city", emp.getAddress().getCity());
jsonGenerator.writeNumberField("zipcode", emp.getAddress().getZipcode());
jsonGenerator.writeEndObject(); //end address object
jsonGenerator.writeArrayFieldStart("phoneNumbers");
for(long num : emp.getPhoneNumbers())
jsonGenerator.writeNumber(num);
jsonGenerator.writeEndArray();
jsonGenerator.writeStringField("role", emp.getRole());
jsonGenerator.writeArrayFieldStart("cities"); //start cities array
for(String city : emp.getCities())
jsonGenerator.writeString(city);
jsonGenerator.writeEndArray(); //closing cities array
jsonGenerator.writeObjectFieldStart("properties");
Set<String> keySet = emp.getProperties().keySet();
for(String key : keySet){
String value = emp.getProperties().get(key);
jsonGenerator.writeStringField(key, value);
}
jsonGenerator.writeEndObject(); //closing properties
jsonGenerator.writeEndObject(); //closing root object
jsonGenerator.flush();
jsonGenerator.close();
}
private void writeBooleanProperty(JsonGenerator jsonGenerator, String key, Boolean value) throws IOException {
jsonGenerator.writeBooleanField(key, value);
}
private void appendConstantExpression(final JsonGenerator json,
final EdmConstantExpression constExp, String termName) throws SerializerException, IOException {
switch (constExp.getExpressionType()) {
case Binary:
json.writeObjectFieldStart(termName);
json.writeStringField(DOLLAR + constExp.getExpressionName(), constExp.getValueAsString());
json.writeEndObject();
break;
case Date:
json.writeObjectFieldStart(termName);
json.writeStringField(DOLLAR + constExp.getExpressionName(), constExp.getValueAsString());
json.writeEndObject();
break;
case DateTimeOffset:
json.writeObjectFieldStart(termName);
json.writeStringField(DOLLAR + constExp.getExpressionName(), constExp.getValueAsString());
json.writeEndObject();
break;
case Decimal:
json.writeObjectFieldStart(termName);
json.writeStringField(DOLLAR + constExp.getExpressionName(), constExp.getValueAsString());
json.writeEndObject();
break;
case Float:
json.writeObjectFieldStart(termName);
json.writeStringField(DOLLAR + constExp.getExpressionName(), constExp.getValueAsString());
json.writeEndObject();
break;
case Int:
json.writeObjectFieldStart(termName);
json.writeStringField(DOLLAR + constExp.getExpressionName(), constExp.getValueAsString());
json.writeEndObject();
break;
case Duration:
json.writeObjectFieldStart(termName);
json.writeStringField(DOLLAR + constExp.getExpressionName(), constExp.getValueAsString());
json.writeEndObject();
break;
case EnumMember:
json.writeObjectFieldStart(termName);
json.writeStringField(DOLLAR + constExp.getExpressionName(), constExp.getValueAsString());
json.writeEndObject();
break;
case Guid:
json.writeObjectFieldStart(termName);
json.writeStringField("$" + constExp.getExpressionName(), constExp.getValueAsString());
json.writeEndObject();
break;
case TimeOfDay:
json.writeObjectFieldStart(termName);
json.writeStringField(DOLLAR + constExp.getExpressionName(), constExp.getValueAsString());
json.writeEndObject();
break;
case Bool:
if (termName != null && termName.length() > 0) {
json.writeBooleanField(termName, Boolean.valueOf(constExp.getValueAsString()));
} else {
json.writeBoolean(Boolean.valueOf(constExp.getValueAsString()));
}
break;
case String:
if (termName != null && termName.length() > 0) {
json.writeStringField(termName, constExp.getValueAsString());
} else {
json.writeString(constExp.getValueAsString());
}
break;
default:
throw new IllegalArgumentException("Unkown ExpressionType "
+ "for constant expression: " + constExp.getExpressionType());
}
}
@Override
public int serializeOnJackson(TextureAnimation object, JsonGenerator jacksonSerializer) throws
Exception {
jacksonSerializer.writeStartObject();
int fieldCount=0;
// Serialized Field:
// field name (mapped with "name")
if (object.getName()!=null) {
fieldCount++;
jacksonSerializer.writeStringField("name", object.getName());
}
// field loop (mapped with "loop")
fieldCount++;
jacksonSerializer.writeBooleanField("loop", object.isLoop());
// field rate (mapped with "rate")
fieldCount++;
jacksonSerializer.writeNumberField("rate", object.getRate());
// field frames (mapped with "frames")
if (object.frames!=null) {
fieldCount++;
int n=object.frames.size();
TextureKeyFrame item;
// write wrapper tag
jacksonSerializer.writeFieldName("frames");
jacksonSerializer.writeStartArray();
for (int i=0; i<n; i++) {
item=object.frames.get(i);
if (item==null) {
jacksonSerializer.writeNull();
} else {
textureKeyFrameBindMap.serializeOnJackson(item, jacksonSerializer);
}
}
jacksonSerializer.writeEndArray();
}
jacksonSerializer.writeEndObject();
return fieldCount;
}
@Override
public int serializeOnJackson(Translation object, JsonGenerator jacksonSerializer) throws
Exception {
jacksonSerializer.writeStartObject();
int fieldCount=0;
// Serialized Field:
// field name (mapped with "name")
if (object.getName()!=null) {
fieldCount++;
jacksonSerializer.writeStringField("name", object.getName());
}
// field loop (mapped with "loop")
fieldCount++;
jacksonSerializer.writeBooleanField("loop", object.isLoop());
// field rate (mapped with "rate")
fieldCount++;
jacksonSerializer.writeNumberField("rate", object.getRate());
// field frames (mapped with "frames")
if (object.frames!=null) {
fieldCount++;
int n=object.frames.size();
TranslationFrame item;
// write wrapper tag
jacksonSerializer.writeFieldName("frames");
jacksonSerializer.writeStartArray();
for (int i=0; i<n; i++) {
item=object.frames.get(i);
if (item==null) {
jacksonSerializer.writeNull();
} else {
translationFrameBindMap.serializeOnJackson(item, jacksonSerializer);
}
}
jacksonSerializer.writeEndArray();
}
jacksonSerializer.writeEndObject();
return fieldCount;
}