JSONObject

java.lang.Object
- com.fr.json.JSONObject

所有已实现的接口:

Copyable, java.io.Serializable, java.lang.Iterable<java.util.Map.Entry<java.lang.String,java.lang.Object>>
```
public class JSONObject
extends java.lang.Object
implements java.lang.Iterable<java.util.Map.Entry<java.lang.String,java.lang.Object>>, Copyable
```
版本:

10.0 Created by richie on 2019-01-02

作者:

richie

另请参阅:
序列化表格

字段概要

字段
限定符和类型字段和说明

static JSONObject EMPTY

static java.lang.Object NULL

字段
限定符和类型	字段和说明
`static JSONObject`	`EMPTY`
`static java.lang.Object`	`NULL`

构造器概要

构造器
构造器和说明
`JSONObject()` Create a new, empty instance
`JSONObject(java.util.Map map)` Create an instance from a Map.
`JSONObject(java.lang.String json)` Create an instance from a string of JSON

方法概要

方法
限定符和类型	方法和说明
`JSONObject`	`clear()` Remove all the entries in this JSON object
`boolean`	`containsKey(java.lang.String key)` Does the JSON object contain the specified key?
`JSONObject`	`copy()` Copy the JSON object
`static JSONObject`	`create()`
`static JSONObject`	`create(java.util.Map<java.lang.String,java.lang.Object> map)`
`java.lang.String`	`encode()` Encode this JSON object as a string.
`java.lang.String`	`encodePrettily()` Encode this JSON object a a string, with whitespace to make the object easier to read by a human, or other sentient organism.
`boolean`	`equals(java.lang.Object o)`
`java.util.Set<java.lang.String>`	`fieldNames()` Return the set of field names in the JSON objects
`java.lang.Object`	`get(java.lang.String key)`
`byte[]`	`getBinary(java.lang.String key)` Get the binary value with the specified key.
`byte[]`	`getBinary(java.lang.String key, byte[] def)` Like `getBinary(String)` but specifying a default value to return if there is no entry.
`boolean`	`getBoolean(java.lang.String key)`
`double`	`getDouble(java.lang.String key)`
`float`	`getFloat(java.lang.String key)`
`java.util.Date`	`getInstant(java.lang.String key)`
`int`	`getInt(java.lang.String key)`
`JSONArray`	`getJsonArray(java.lang.String key)` Get the JsonArray value with the specified key
`JSONArray`	`getJSONArray(java.lang.String key)`
`JSONArray`	`getJsonArray(java.lang.String key, JSONArray def)` Like `getJsonArray(String)` but specifying a default value to return if there is no entry.
`JSONObject`	`getJsonObject(java.lang.String key)` Get the JsonObject value with the specified key
`JSONObject`	`getJSONObject(java.lang.String key)`
`JSONObject`	`getJsonObject(java.lang.String key, JSONObject def)` Like `getJsonObject(String)` but specifying a default value to return if there is no entry.
`long`	`getLong(java.lang.String key)`
`java.util.Map<java.lang.String,java.lang.Object>`	`getMap()` Get the underlying `Map` as is.
`java.lang.Double`	`getNumberOfDouble(java.lang.String key)` Get the Double value with the specified key
`java.lang.Double`	`getNumberOfDouble(java.lang.String key, java.lang.Double def)` Like `getNumberOfDouble(String)` but specifying a default value to return if there is no entry.
`java.lang.Float`	`getNumberOfFloat(java.lang.String key)` Get the Float value with the specified key
`java.lang.Float`	`getNumberOfFloat(java.lang.String key, java.lang.Float def)` Like `getNumberOfFloat(String)` but specifying a default value to return if there is no entry.
`java.lang.Integer`	`getNumberOfInteger(java.lang.String key)` Get the Integer value with the specified key
`java.lang.Integer`	`getNumberOfInteger(java.lang.String key, java.lang.Integer def)` Like `getNumberOfInteger(String)` but specifying a default value to return if there is no entry.
`java.lang.Long`	`getNumberOfLong(java.lang.String key)` Get the Long value with the specified key
`java.lang.Long`	`getNumberOfLong(java.lang.String key, java.lang.Long def)` Like `getNumberOfLong(String)` but specifying a default value to return if there is no entry.
`java.lang.Boolean`	`getObjectBoolean(java.lang.String key)` Get the Boolean value with the specified key
`java.lang.Boolean`	`getObjectBoolean(java.lang.String key, java.lang.Boolean def)` Like `getObjectBoolean(String)` but specifying a default value to return if there is no entry.
`java.lang.String`	`getString(java.lang.String key)` Get the string value with the specified key
`java.lang.String`	`getString(java.lang.String key, java.lang.String def)` Like `getString(String)` but specifying a default value to return if there is no entry.
`java.lang.Object`	`getValue(java.lang.String key)` Get the value with the specified key, as an Object
`java.lang.Object`	`getValue(java.lang.String key, java.lang.Object def)` Like `getValue(String)` but specifying a default value to return if there is no entry.
`boolean`	`has(java.lang.String key)` 判断是否包含键
`int`	`hashCode()`
`boolean`	`isEmpty()` Is this object entry?
`java.util.Iterator<java.util.Map.Entry<java.lang.String,java.lang.Object>>`	`iterator()` Get an Iterator of the entries in the JSON object.
`JSONObject`	`join(JSONObject target)` 已过时。
`java.util.Iterator<java.lang.String>`	`keys()`
`int`	`length()`
`static void`	`main(java.lang.String[] args)`
`static JSONObject`	`mapFrom(java.lang.Object obj)` Create a JsonObject from the fields of a Java object.
`<T> T`	`mapTo(java.lang.Class<T> type)` Instantiate a Java object from a JsonObject.
`JSONObject`	`mergeIn(JSONObject other)` Merge in another JSON object.
`JSONObject`	`mergeIn(JSONObject other, boolean deep)` Merge in another JSON object.
`JSONObject`	`mergeIn(JSONObject other, int depth)` Merge in another JSON object.
`java.lang.Object`	`opt(java.lang.String key)`
`boolean`	`optBoolean(java.lang.String key)`
`boolean`	`optBoolean(java.lang.String key, boolean defaultValue)`
`double`	`optDouble(java.lang.String key)`
`double`	`optDouble(java.lang.String key, double defaultValue)`
`int`	`optInt(java.lang.String key)`
`int`	`optInt(java.lang.String key, int defaultValue)`
`JSONArray`	`optJSONArray(java.lang.String key)`
`JSONObject`	`optJSONObject(java.lang.String key)`
`long`	`optLong(java.lang.String key)`
`long`	`optLong(java.lang.String key, long defaultValue)`
`java.lang.String`	`optString(java.lang.String key)`
`java.lang.String`	`optString(java.lang.String key, java.lang.String defaultValue)`
`JSONObject`	`put(java.lang.String key, boolean value)` Put a boolean into the JSON object with the specified key.
`JSONObject`	`put(java.lang.String key, java.lang.Boolean value)` Put a Boolean into the JSON object with the specified key.
`JSONObject`	`put(java.lang.String key, byte[] value)` Put a byte[] into the JSON object with the specified key.
`JSONObject`	`put(java.lang.String key, java.lang.CharSequence value)` Put an CharSequence into the JSON object with the specified key.
`JSONObject`	`put(java.lang.String key, java.util.Collection c)` 已过时。
`JSONObject`	`put(java.lang.String key, java.util.Date value)`
`JSONObject`	`put(java.lang.String key, double value)` Put a double into the JSON object with the specified key.
`JSONObject`	`put(java.lang.String key, java.lang.Double value)` Put a Double into the JSON object with the specified key.
`JSONObject`	`put(java.lang.String key, java.lang.Enum value)` Put an Enum into the JSON object with the specified key.
`JSONObject`	`put(java.lang.String key, float value)` Put a float into the JSON object with the specified key.
`JSONObject`	`put(java.lang.String key, java.lang.Float value)` Put a Float into the JSON object with the specified key.
`JSONObject`	`put(java.lang.String key, int value)` Put an int into the JSON object with the specified key.
`JSONObject`	`put(java.lang.String key, java.lang.Integer value)` Put an Integer into the JSON object with the specified key.
`JSONObject`	`put(java.lang.String key, JSONArray value)` Put a JSON array into the JSON object with the specified key.
`JSONObject`	`put(java.lang.String key, JSONObject value)` Put another JSON object into the JSON object with the specified key.
`JSONObject`	`put(java.lang.String key, long value)` Put a long into the JSON object with the specified key.
`JSONObject`	`put(java.lang.String key, java.lang.Long value)` Put a Long into the JSON object with the specified key.
`JSONObject`	`put(java.lang.String key, java.util.Map<java.lang.String,java.lang.Object> value)`
`JSONObject`	`put(java.lang.String key, java.lang.Object value)` Put an Object into the JSON object with the specified key.
`JSONObject`	`put(java.lang.String key, java.lang.String value)` Put a String into the JSON object with the specified key.
`JSONObject`	`putNull(java.lang.String key)` Put a null value into the JSON object with the specified key.
`JSONObject`	`putOpt(java.lang.String key, java.lang.Object value)`
`java.lang.Object`	`remove(java.lang.String key)` Remove an entry from this object.
`int`	`size()` Get the number of entries in the JSON object
`java.util.Map<java.lang.String,java.lang.Object>`	`toMap()`
`java.lang.String`	`toString()`

从类继承的方法 java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- 字段详细资料
  - NULL
```
public static final java.lang.Object NULL
```
  - EMPTY
```
public static final JSONObject EMPTY
```
- 构造器详细资料
  - JSONObject
```
public JSONObject(java.lang.String json)
```
    Create an instance from a string of JSON
    
    参数:
    json - the string of JSON
  - JSONObject
```
public JSONObject()
```
    Create a new, empty instance
  - JSONObject
```
public JSONObject(java.util.Map map)
```
    Create an instance from a Map. The Map is not copied.
    
    参数:
    map - the map to create the instance from.
- 方法详细资料
  - create
```
public static JSONObject create()
```
  - create
```
public static JSONObject create(java.util.Map<java.lang.String,java.lang.Object> map)
```
  - mapFrom
```
public static JSONObject mapFrom(java.lang.Object obj)
```
    Create a JsonObject from the fields of a Java object. Faster than calling `new JsonObject(Json.encode(obj))`.
    obj is null.
    
    参数:
    obj - The object to convert to a JsonObject.
    
    抛出:
    
    java.lang.IllegalArgumentException - if conversion fails due to an incompatible type.
  - mapTo
```
public <T> T mapTo(java.lang.Class<T> type)
```
    Instantiate a Java object from a JsonObject. Faster than calling `Json.decodeValue(Json.encode(jsonObject), type)`.
    
    参数:
    type - The type to instantiate from the JsonObject.
    
    抛出:
    
    java.lang.IllegalArgumentException - if the type cannot be instantiated.
  - has
```
public boolean has(java.lang.String key)
```
    判断是否包含键
    
    参数:
    key - 键
    
    返回:
    包含键则返回true，否则返回false
  - getString
```
public java.lang.String getString(java.lang.String key)
```
    Get the string value with the specified key
    
    参数:
    key - the key to return the value for
    
    返回:
    the value or null if no value for that key
  - getNumberOfInteger
```
public java.lang.Integer getNumberOfInteger(java.lang.String key)
```
    Get the Integer value with the specified key
    
    参数:
    key - the key to return the value for
    
    返回:
    the value or null if no value for that key
  - getNumberOfLong
```
public java.lang.Long getNumberOfLong(java.lang.String key)
```
    Get the Long value with the specified key
    
    参数:
    key - the key to return the value for
    
    返回:
    the value or null if no value for that key
  - getNumberOfDouble
```
public java.lang.Double getNumberOfDouble(java.lang.String key)
```
    Get the Double value with the specified key
    
    参数:
    key - the key to return the value for
    
    返回:
    the value or null if no value for that key
  - getNumberOfFloat
```
public java.lang.Float getNumberOfFloat(java.lang.String key)
```
    Get the Float value with the specified key
    
    参数:
    key - the key to return the value for
    
    返回:
    the value or null if no value for that key
  - getObjectBoolean
```
public java.lang.Boolean getObjectBoolean(java.lang.String key)
```
    Get the Boolean value with the specified key
    
    参数:
    key - the key to return the value for
    
    返回:
    the value or null if no value for that key
  - getJsonObject
```
public JSONObject getJsonObject(java.lang.String key)
```
    Get the JsonObject value with the specified key
    
    参数:
    key - the key to return the value for
    
    返回:
    the value or null if no value for that key
    
    抛出:
    
    java.lang.ClassCastException - if the value is not a JsonObject
  - getJsonArray
```
public JSONArray getJsonArray(java.lang.String key)
```
    Get the JsonArray value with the specified key
    
    参数:
    key - the key to return the value for
    
    返回:
    the value or null if no value for that key
    
    抛出:
    
    java.lang.ClassCastException - if the value is not a JsonArray
  - getBinary
```
public byte[] getBinary(java.lang.String key)
```
    Get the binary value with the specified key.
    JSON itself has no notion of a binary, this extension complies to the RFC-7493, so this method assumes there is a String value with the key and it contains a Base64 encoded binary, which it decodes if found and returns.
    This method should be used in conjunction with put(String, byte[])
    
    参数:
    key - the key to return the value for
    
    返回:
    the value or null if no value for that key
    
    抛出:
    
    java.lang.ClassCastException - if the value is not a String
    
    java.lang.IllegalArgumentException - if the String value is not a legal Base64 encoded value
  - getInstant
```
public java.util.Date getInstant(java.lang.String key)
```
  - getValue
```
public java.lang.Object getValue(java.lang.String key)
```
    Get the value with the specified key, as an Object
    
    参数:
    key - the key to lookup
    
    返回:
    the value
  - getString
```
public java.lang.String getString(java.lang.String key,
                         java.lang.String def)
```
    Like getString(String) but specifying a default value to return if there is no entry.
    
    参数:
    key - the key to lookup
    def - the default value to use if the entry is not present
    
    返回:
    the value or def if no entry present
  - getNumberOfInteger
```
public java.lang.Integer getNumberOfInteger(java.lang.String key,
                                   java.lang.Integer def)
```
    Like getNumberOfInteger(String) but specifying a default value to return if there is no entry.
    
    参数:
    key - the key to lookup
    def - the default value to use if the entry is not present
    
    返回:
    the value or def if no entry present
  - getNumberOfLong
```
public java.lang.Long getNumberOfLong(java.lang.String key,
                             java.lang.Long def)
```
    Like getNumberOfLong(String) but specifying a default value to return if there is no entry.
    
    参数:
    key - the key to lookup
    def - the default value to use if the entry is not present
    
    返回:
    the value or def if no entry present
  - getNumberOfDouble
```
public java.lang.Double getNumberOfDouble(java.lang.String key,
                                 java.lang.Double def)
```
    Like getNumberOfDouble(String) but specifying a default value to return if there is no entry.
    
    参数:
    key - the key to lookup
    def - the default value to use if the entry is not present
    
    返回:
    the value or def if no entry present
  - getNumberOfFloat
```
public java.lang.Float getNumberOfFloat(java.lang.String key,
                               java.lang.Float def)
```
    Like getNumberOfFloat(String) but specifying a default value to return if there is no entry.
    
    参数:
    key - the key to lookup
    def - the default value to use if the entry is not present
    
    返回:
    the value or def if no entry present
  - getObjectBoolean
```
public java.lang.Boolean getObjectBoolean(java.lang.String key,
                                 java.lang.Boolean def)
```
    Like getObjectBoolean(String) but specifying a default value to return if there is no entry.
    
    参数:
    key - the key to lookup
    def - the default value to use if the entry is not present
    
    返回:
    the value or def if no entry present
  - getJsonObject
```
public JSONObject getJsonObject(java.lang.String key,
                       JSONObject def)
```
    Like getJsonObject(String) but specifying a default value to return if there is no entry.
    
    参数:
    key - the key to lookup
    def - the default value to use if the entry is not present
    
    返回:
    the value or def if no entry present
  - getJsonArray
```
public JSONArray getJsonArray(java.lang.String key,
                     JSONArray def)
```
    Like getJsonArray(String) but specifying a default value to return if there is no entry.
    
    参数:
    key - the key to lookup
    def - the default value to use if the entry is not present
    
    返回:
    the value or def if no entry present
  - getBinary
```
public byte[] getBinary(java.lang.String key,
               byte[] def)
```
    Like getBinary(String) but specifying a default value to return if there is no entry.
    
    参数:
    key - the key to lookup
    def - the default value to use if the entry is not present
    
    返回:
    the value or def if no entry present
  - getValue
```
public java.lang.Object getValue(java.lang.String key,
                        java.lang.Object def)
```
    Like getValue(String) but specifying a default value to return if there is no entry.
    
    参数:
    key - the key to lookup
    def - the default value to use if the entry is not present
    
    返回:
    the value or def if no entry present
  - containsKey
```
public boolean containsKey(java.lang.String key)
```
    Does the JSON object contain the specified key?
    
    参数:
    key - the key
    
    返回:
    true if it contains the key, false if not.
  - fieldNames
```
public java.util.Set<java.lang.String> fieldNames()
```
    Return the set of field names in the JSON objects
    
    返回:
    the set of field names
  - put
```
public JSONObject put(java.lang.String key,
             java.lang.Enum value)
```
    Put an Enum into the JSON object with the specified key.
    JSON has no concept of encoding Enums, so the Enum will be converted to a String using the Enum.name() method and the value put as a String.
    
    参数:
    key - the key
    value - the value
    
    返回:
    a reference to this, so the API can be used fluently
  - put
```
public JSONObject put(java.lang.String key,
             java.lang.CharSequence value)
```
    Put an CharSequence into the JSON object with the specified key.
    
    参数:
    key - the key
    value - the value
    
    返回:
    a reference to this, so the API can be used fluently
  - put
```
public JSONObject put(java.lang.String key,
             java.lang.String value)
```
    Put a String into the JSON object with the specified key.
    
    参数:
    key - the key
    value - the value
    
    返回:
    a reference to this, so the API can be used fluently
  - put
```
public JSONObject put(java.lang.String key,
             java.lang.Integer value)
```
    Put an Integer into the JSON object with the specified key.
    
    参数:
    key - the key
    value - the value
    
    返回:
    a reference to this, so the API can be used fluently
  - put
```
public JSONObject put(java.lang.String key,
             int value)
```
    Put an int into the JSON object with the specified key.
    
    参数:
    key - the key
    value - the value
    
    返回:
    a reference to this, so the API can be used fluently
  - put
```
public JSONObject put(java.lang.String key,
             java.lang.Long value)
```
    Put a Long into the JSON object with the specified key.
    
    参数:
    key - the key
    value - the value
    
    返回:
    a reference to this, so the API can be used fluently
  - put
```
public JSONObject put(java.lang.String key,
             long value)
```
    Put a long into the JSON object with the specified key.
    
    参数:
    key - the key
    value - the value
    
    返回:
    a reference to this, so the API can be used fluently
  - put
```
public JSONObject put(java.lang.String key,
             java.lang.Double value)
```
    Put a Double into the JSON object with the specified key.
    
    参数:
    key - the key
    value - the value
    
    返回:
    a reference to this, so the API can be used fluently
  - put
```
public JSONObject put(java.lang.String key,
             double value)
```
    Put a double into the JSON object with the specified key.
    
    参数:
    key - the key
    value - the value
    
    返回:
    a reference to this, so the API can be used fluently
  - put
```
public JSONObject put(java.lang.String key,
             java.lang.Float value)
```
    Put a Float into the JSON object with the specified key.
    
    参数:
    key - the key
    value - the value
    
    返回:
    a reference to this, so the API can be used fluently
  - put
```
public JSONObject put(java.lang.String key,
             float value)
```
    Put a float into the JSON object with the specified key.
    
    参数:
    key - the key
    value - the value
    
    返回:
    a reference to this, so the API can be used fluently
  - put
```
public JSONObject put(java.lang.String key,
             java.lang.Boolean value)
```
    Put a Boolean into the JSON object with the specified key.
    
    参数:
    key - the key
    value - the value
    
    返回:
    a reference to this, so the API can be used fluently
  - put
```
public JSONObject put(java.lang.String key,
             boolean value)
```
    Put a boolean into the JSON object with the specified key.
    
    参数:
    key - the key
    value - the value
    
    返回:
    a reference to this, so the API can be used fluently
  - putNull
```
public JSONObject putNull(java.lang.String key)
```
    Put a null value into the JSON object with the specified key.
    
    参数:
    key - the key
    
    返回:
    a reference to this, so the API can be used fluently
  - put
```
public JSONObject put(java.lang.String key,
             java.util.Map<java.lang.String,java.lang.Object> value)
```
  - put
```
public JSONObject put(java.lang.String key,
             JSONObject value)
```
    Put another JSON object into the JSON object with the specified key.
    
    参数:
    key - the key
    value - the value
    
    返回:
    a reference to this, so the API can be used fluently
  - put
```
public JSONObject put(java.lang.String key,
             JSONArray value)
```
    Put a JSON array into the JSON object with the specified key.
    
    参数:
    key - the key
    value - the value
    
    返回:
    a reference to this, so the API can be used fluently
  - put
```
public JSONObject put(java.lang.String key,
             byte[] value)
```
    Put a byte[] into the JSON object with the specified key.
    JSON extension RFC7493, binary will first be Base64 encoded before being put as a String.
    
    参数:
    key - the key
    value - the value
    
    返回:
    a reference to this, so the API can be used fluently
  - put
```
public JSONObject put(java.lang.String key,
             java.util.Date value)
```
  - put
```
public JSONObject put(java.lang.String key,
             java.lang.Object value)
```
    Put an Object into the JSON object with the specified key.
    
    参数:
    key - the key
    value - the value
    
    返回:
    a reference to this, so the API can be used fluently
  - remove
```
public java.lang.Object remove(java.lang.String key)
```
    Remove an entry from this object.
    
    参数:
    key - the key
    
    返回:
    the value that was removed, or null if none
  - mergeIn
```
public JSONObject mergeIn(JSONObject other)
```
    Merge in another JSON object.
    This is the equivalent of putting all the entries of the other JSON object into this object. This is not a deep merge, entries containing (sub) JSON objects will be replaced entirely.
    
    参数:
    other - the other JSON object
    
    返回:
    a reference to this, so the API can be used fluently
  - mergeIn
```
public JSONObject mergeIn(JSONObject other,
                 boolean deep)
```
    Merge in another JSON object. A deep merge (recursive) matches (sub) JSON objects in the existing tree and replaces all matching entries. JsonArrays are treated like any other entry, i.e. replaced entirely.
    
    参数:
    other - the other JSON object
    deep - if true, a deep merge is performed
    
    返回:
    a reference to this, so the API can be used fluently
  - mergeIn
```
public JSONObject mergeIn(JSONObject other,
                 int depth)
```
    Merge in another JSON object. The merge is deep (recursive) to the specified level. If depth is 0, no merge is performed, if depth is greater than the depth of one of the objects, a full deep merge is performed.
    
    参数:
    other - the other JSON object
    depth - depth of merge
    
    返回:
    a reference to this, so the API can be used fluently
  - encode
```
public java.lang.String encode()
```
    Encode this JSON object as a string.
    
    返回:
    the string encoding.
  - encodePrettily
```
public java.lang.String encodePrettily()
```
    Encode this JSON object a a string, with whitespace to make the object easier to read by a human, or other sentient organism.
    
    返回:
    the pretty string encoding.
  - copy
```
public JSONObject copy()
```
    Copy the JSON object
    
    指定者:
    
    copy 在接口中 Copyable
    
    返回:
    a copy of the object
  - getMap
```
public java.util.Map<java.lang.String,java.lang.Object> getMap()
```
    Get the underlying Map as is.
    This map may contain values that are not the types returned by the JsonObject.
    
    返回:
    the underlying Map.
  - iterator
```
public java.util.Iterator<java.util.Map.Entry<java.lang.String,java.lang.Object>> iterator()
```
    Get an Iterator of the entries in the JSON object.
    
    指定者:
    
    iterator 在接口中 java.lang.Iterable<java.util.Map.Entry<java.lang.String,java.lang.Object>>
    
    返回:
    an Iterator of the entries
  - size
```
public int size()
```
    Get the number of entries in the JSON object
    
    返回:
    the number of entries
  - clear
```
public JSONObject clear()
```
    Remove all the entries in this JSON object
  - isEmpty
```
public boolean isEmpty()
```
    Is this object entry?
    
    返回:
    true if it has zero entries, false if not.
  - toString
```
public java.lang.String toString()
```
    覆盖:
    
    toString 在类中 java.lang.Object
  - equals
```
public boolean equals(java.lang.Object o)
```
    覆盖:
    
    equals 在类中 java.lang.Object
  - hashCode
```
public int hashCode()
```
    覆盖:
    
    hashCode 在类中 java.lang.Object
  - length
```
public int length()
```
  - keys
```
public java.util.Iterator<java.lang.String> keys()
```
  - toMap
```
public java.util.Map<java.lang.String,java.lang.Object> toMap()
```
  - join
```
public JSONObject join(JSONObject target)
```
    已过时。
  - put
```
public JSONObject put(java.lang.String key,
             java.util.Collection c)
```
    已过时。
    
    另请参阅:
    put(String, JSONArray)
  - putOpt
```
public JSONObject putOpt(java.lang.String key,
                java.lang.Object value)
                  throws JSONException
```
    抛出:
    
    JSONException
  - get
```
public java.lang.Object get(java.lang.String key)
                     throws JSONException
```
    抛出:
    
    JSONException
  - getBoolean
```
public boolean getBoolean(java.lang.String key)
                   throws JSONException
```
    抛出:
    
    JSONException
  - getInt
```
public int getInt(java.lang.String key)
           throws JSONException
```
    抛出:
    
    JSONException
  - getLong
```
public long getLong(java.lang.String key)
             throws JSONException
```
    抛出:
    
    JSONException
  - getFloat
```
public float getFloat(java.lang.String key)
               throws JSONException
```
    抛出:
    
    JSONException
  - getDouble
```
public double getDouble(java.lang.String key)
                 throws JSONException
```
    抛出:
    
    JSONException
  - getJSONArray
```
public JSONArray getJSONArray(java.lang.String key)
                       throws JSONException
```
    抛出:
    
    JSONException
  - getJSONObject
```
public JSONObject getJSONObject(java.lang.String key)
                         throws JSONException
```
    抛出:
    
    JSONException
  - opt
```
public java.lang.Object opt(java.lang.String key)
```
  - optString
```
public java.lang.String optString(java.lang.String key)
```
  - optString
```
public java.lang.String optString(java.lang.String key,
                         java.lang.String defaultValue)
```
  - optInt
```
public int optInt(java.lang.String key)
```
  - optInt
```
public int optInt(java.lang.String key,
         int defaultValue)
```
  - optLong
```
public long optLong(java.lang.String key)
```
  - optLong
```
public long optLong(java.lang.String key,
           long defaultValue)
```
  - optDouble
```
public double optDouble(java.lang.String key)
```
  - optDouble
```
public double optDouble(java.lang.String key,
               double defaultValue)
```
  - optBoolean
```
public boolean optBoolean(java.lang.String key)
```
  - optBoolean
```
public boolean optBoolean(java.lang.String key,
                 boolean defaultValue)
```
  - optJSONArray
```
public JSONArray optJSONArray(java.lang.String key)
```
  - optJSONObject
```
public JSONObject optJSONObject(java.lang.String key)
```
  - main
```
public static void main(java.lang.String[] args)
                 throws java.lang.Exception
```
    抛出:
    
    java.lang.Exception

类 JSONObject

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

NULL

EMPTY

构造器详细资料

JSONObject

JSONObject

JSONObject

方法详细资料

create

create

mapFrom

mapTo

has

getString

getNumberOfInteger

getNumberOfLong

getNumberOfDouble

getNumberOfFloat

getObjectBoolean

getJsonObject

getJsonArray

getBinary

getInstant

getValue

getString

getNumberOfInteger

getNumberOfLong

getNumberOfDouble

getNumberOfFloat

getObjectBoolean

getJsonObject

getJsonArray

getBinary

getValue

containsKey

fieldNames

put

put

put

put

put

put

put

put

put

put

put

put

put

putNull

put

put

put

put

put

put

remove

mergeIn

mergeIn

mergeIn

encode

encodePrettily

copy

getMap

iterator

size

clear

isEmpty

toString

equals

hashCode

length

keys

toMap

join