ObjectOutputStream.PutField
public static abstract class ObjectOutputStream.PutField
extends Object
提供对写入ObjectOutput的持久字段的编程访问。
Summary
Public methods |
abstract void |
put(String name, float val) 将指定的浮点字段的值放入持久字段中。 |
abstract void |
put(String name, double val) 将指定的双字段的值放入持久字段中。 |
abstract void |
put(String name, int val) 将named int字段的值放入持久字段中。 |
abstract void |
put(String name, long val) 将指定长字段的值放入持久字段中。 |
abstract void |
put(String name, byte val) 将指定字节字段的值放入持久字段中。 |
abstract void |
put(String name, short val) 将命名的短字段的值放入持久字段中。 |
abstract void |
put(String name, Object val) 将名为Object的字段的值放入持久字段中。 |
abstract void |
put(String name, char val) 将指定的char字段的值放入持久字段中。 |
abstract void |
put(String name, boolean val) 将命名布尔字段的值放入持久字段中。 |
abstract void |
write(ObjectOutput out) 此方法在API级别1中已弃用。此方法不会以适当的格式写入此PutField对象所包含的值，并可能导致序列化流损坏。 编写PutField数据的正确方法是调用writeFields()方法。 |
Public constructors
ObjectOutputStream.PutField
ObjectOutputStream.PutField ()
Public methods
put
void put (String name,
float val)
将指定的浮点字段的值放入持久字段中。
| Parameters |
name |
String: the name of the serializable field |
val |
float: the value to assign to the field |
| Throws |
IllegalArgumentException |
if name does not match the name of a serializable field for the class whose fields are being written, or if the type of the named field is not float |
put
void put (String name,
double val)
将指定的双字段的值放入持久字段中。
| Parameters |
name |
String: the name of the serializable field |
val |
double: the value to assign to the field |
| Throws |
IllegalArgumentException |
if name does not match the name of a serializable field for the class whose fields are being written, or if the type of the named field is not double |
put
void put (String name,
int val)
将named int字段的值放入持久字段中。
| Parameters |
name |
String: the name of the serializable field |
val |
int: the value to assign to the field |
| Throws |
IllegalArgumentException |
if name does not match the name of a serializable field for the class whose fields are being written, or if the type of the named field is not int |
put
void put (String name,
long val)
将指定长字段的值放入持久字段中。
| Parameters |
name |
String: the name of the serializable field |
val |
long: the value to assign to the field |
| Throws |
IllegalArgumentException |
if name does not match the name of a serializable field for the class whose fields are being written, or if the type of the named field is not long |
put
void put (String name,
byte val)
将指定字节字段的值放入持久字段中。
| Parameters |
name |
String: the name of the serializable field |
val |
byte: the value to assign to the field |
| Throws |
IllegalArgumentException |
if name does not match the name of a serializable field for the class whose fields are being written, or if the type of the named field is not byte |
put
void put (String name,
short val)
将命名的短字段的值放入持久字段中。
| Parameters |
name |
String: the name of the serializable field |
val |
short: the value to assign to the field |
| Throws |
IllegalArgumentException |
if name does not match the name of a serializable field for the class whose fields are being written, or if the type of the named field is not short |
put
void put (String name,
Object val)
将名为Object的字段的值放入持久字段中。
| Parameters |
name |
String: the name of the serializable field |
val |
Object: the value to assign to the field (which may be null) |
| Throws |
IllegalArgumentException |
if name does not match the name of a serializable field for the class whose fields are being written, or if the type of the named field is not a reference type |
put
void put (String name,
char val)
将指定的char字段的值放入持久字段中。
| Parameters |
name |
String: the name of the serializable field |
val |
char: the value to assign to the field |
| Throws |
IllegalArgumentException |
if name does not match the name of a serializable field for the class whose fields are being written, or if the type of the named field is not char |
put
void put (String name,
boolean val)
将命名布尔字段的值放入持久字段中。
| Parameters |
name |
String: the name of the serializable field |
val |
boolean: the value to assign to the field |
| Throws |
IllegalArgumentException |
if name does not match the name of a serializable field for the class whose fields are being written, or if the type of the named field is not boolean |
write
void write (ObjectOutput out)
此方法在API级别1中已弃用。
此方法不会以适当的格式写入此PutField对象包含的值，并可能导致序列化流损坏。 编写PutField数据的正确方法是调用writeFields()方法。
将数据和字段写入指定的ObjectOutput流，该流必须与生成此 PutField对象的流相同。
| Parameters |
out |
ObjectOutput: the stream to write the data and fields to |
| Throws |
IOException |
if I/O errors occur while writing to the underlying stream |
IllegalArgumentException |
if the specified stream is not the same stream that produced this PutField object |
From class 
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