io.jboot.utils

类 JsonUtil

java.lang.Object

io.jboot.utils.JsonUtil

public class JsonUtil
extends Object

基于 FastJson，方便解析 Json 内容

例如：

{ "array": [ 1, 2, 3 ], "type": true, "null": null, "number": 123, "object": { "a": "b", "c": "d", "e":1 }, "key": "welcome to CodeFormat.CN" }

Boolean type = JsonUtil.getBool(json,"type"); //type == true

int e = JsonUtil.getInt(json,"object.e") // e == 1

BigInteger n = JsonUtil.getBigInteger("number") // n == 123

String[] array = JsonUtil.get(json,"array",String[].class) //array == ["1","2","3"]

int[] array = JsonUtil.get(json,"array",int[].class) //array == [1,2,3]

Map map = JsonUtil.get(json,"object",Map.class) //map == {"a":"b","c":"d","e":1}

int x = JsonUtil.getInt(json,"array[1]"); // x == 2

String key = JsonUtil.getString(json,"key"); // key == "welcome to CodeFormat.CN"

构造器概要

构造器

构造器和说明
JsonUtil()

方法概要

限定符和类型	方法和说明
static <T> T	get(Object jsonObjectOrArray, String key, Class<T> clazz)
static <T> T	get(Object jsonObjectOrArray, String key, TypeDef<?> typeDef)
static <T> T	get(String json, String key, Class<T> clazz)
static <T> T	get(String json, String key, TypeDef<?> typeDef)
static BigDecimal	getBigDecimal(Object jsonObjectOrArray, String key)
static BigDecimal	getBigDecimal(Object jsonObjectOrArray, String key, BigDecimal defaultValue)
static BigDecimal	getBigDecimal(String json, String key)
static BigDecimal	getBigDecimal(String json, String key, BigDecimal defaultValue)
static BigInteger	getBigInteger(Object jsonObjectOrArray, String key)
static BigInteger	getBigInteger(Object jsonObjectOrArray, String key, BigInteger defaultValue)
static BigInteger	getBigInteger(String json, String key)
static BigInteger	getBigInteger(String json, String key, BigInteger defaultValue)
static Boolean	getBool(Object jsonObjectOrArray, String key)
static boolean	getBool(Object jsonObjectOrArray, String key, boolean defaultValue)
static Boolean	getBool(String json, String key)
static boolean	getBool(String json, String key, boolean defaultValue)
static Date	getDate(Object jsonObjectOrArray, String key)
static Date	getDate(Object jsonObjectOrArray, String key, Date defaultValue)
static Date	getDate(String json, String key)
static Date	getDate(String json, String key, Date defaultValue)
static Double	getDouble(Object jsonObjectOrArray, String key)
static double	getDouble(Object jsonObjectOrArray, String key, double defaultValue)
static Double	getDouble(String json, String key)
static double	getDouble(String json, String key, double defaultValue)
static Float	getFloat(Object jsonObjectOrArray, String key)
static float	getFloat(Object jsonObjectOrArray, String key, float defaultValue)
static Float	getFloat(String json, String key)
static float	getFloat(String json, String key, float defaultValue)
static Integer	getInt(Object jsonObjectOrArray, String key)
static int	getInt(Object jsonObjectOrArray, String key, int defaultValue)
static Integer	getInt(String json, String key)
static int	getInt(String json, String key, int defaultValue)
static com.alibaba.fastjson.JSONArray	getJSONArray(Object jsonObjectOrArray, String key)
static com.alibaba.fastjson.JSONArray	getJSONArray(String json, String key)
static com.alibaba.fastjson.JSONObject	getJSONObject(Object jsonObjectOrArray, String key)
static com.alibaba.fastjson.JSONObject	getJSONObject(String json, String key)
static Object	getJsonObjectOrArray(String json)
static <T> List<T>	getList(Object jsonObjectOrArray, String key, Class<T> clazz)
static <T> List<T>	getList(String json, String key, Class<T> clazz)
static Long	getLong(Object jsonObjectOrArray, String key)
static long	getLong(Object jsonObjectOrArray, String key, long defaultValue)
static Long	getLong(String json, String key)
static long	getLong(String json, String key, long defaultValue)
static <T> Set<T>	getSet(Object jsonObjectOrArray, String key, Class<T> clazz)
static <T> Set<T>	getSet(String json, String key, Class<T> clazz)
static String	getString(Object jsonObjectOrArray, String key)
static String	getString(Object jsonObjectOrArray, String key, String defaultValue)
static String	getString(String json, String key)
static String	getString(String json, String key, String defaultValue)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

JsonUtil

public JsonUtil()

方法详细资料

getString

public static String getString(String json,
                               String key)

getString

public static String getString(Object jsonObjectOrArray,
                               String key)

getString

public static String getString(String json,
                               String key,
                               String defaultValue)

getString

public static String getString(Object jsonObjectOrArray,
                               String key,
                               String defaultValue)

getBool

public static Boolean getBool(String json,
                              String key)

getBool

public static Boolean getBool(Object jsonObjectOrArray,
                              String key)

getBool

public static boolean getBool(String json,
                              String key,
                              boolean defaultValue)

getBool

public static boolean getBool(Object jsonObjectOrArray,
                              String key,
                              boolean defaultValue)

getInt

public static Integer getInt(String json,
                             String key)

getInt

public static Integer getInt(Object jsonObjectOrArray,
                             String key)

getInt

public static int getInt(String json,
                         String key,
                         int defaultValue)

getInt

public static int getInt(Object jsonObjectOrArray,
                         String key,
                         int defaultValue)

getFloat

public static Float getFloat(String json,
                             String key)

getFloat

public static Float getFloat(Object jsonObjectOrArray,
                             String key)

getFloat

public static float getFloat(String json,
                             String key,
                             float defaultValue)

getFloat

public static float getFloat(Object jsonObjectOrArray,
                             String key,
                             float defaultValue)

getDouble

public static Double getDouble(String json,
                               String key)

getDouble

public static Double getDouble(Object jsonObjectOrArray,
                               String key)

getDouble

public static double getDouble(String json,
                               String key,
                               double defaultValue)

getDouble

public static double getDouble(Object jsonObjectOrArray,
                               String key,
                               double defaultValue)

getLong

public static Long getLong(String json,
                           String key)

getLong

public static Long getLong(Object jsonObjectOrArray,
                           String key)

getLong

public static long getLong(String json,
                           String key,
                           long defaultValue)

getLong

public static long getLong(Object jsonObjectOrArray,
                           String key,
                           long defaultValue)

getBigInteger

public static BigInteger getBigInteger(String json,
                                       String key)

getBigInteger

public static BigInteger getBigInteger(Object jsonObjectOrArray,
                                       String key)

getBigInteger

public static BigInteger getBigInteger(String json,
                                       String key,
                                       BigInteger defaultValue)

getBigInteger

public static BigInteger getBigInteger(Object jsonObjectOrArray,
                                       String key,
                                       BigInteger defaultValue)

getBigDecimal

public static BigDecimal getBigDecimal(String json,
                                       String key)

getBigDecimal

public static BigDecimal getBigDecimal(Object jsonObjectOrArray,
                                       String key)

getBigDecimal

public static BigDecimal getBigDecimal(String json,
                                       String key,
                                       BigDecimal defaultValue)

getBigDecimal

public static BigDecimal getBigDecimal(Object jsonObjectOrArray,
                                       String key,
                                       BigDecimal defaultValue)

getDate

public static Date getDate(String json,
                           String key)

getDate

public static Date getDate(Object jsonObjectOrArray,
                           String key)

getDate

public static Date getDate(String json,
                           String key,
                           Date defaultValue)

getDate

public static Date getDate(Object jsonObjectOrArray,
                           String key,
                           Date defaultValue)

getJSONObject

public static com.alibaba.fastjson.JSONObject getJSONObject(String json,
                                                            String key)

getJSONObject

public static com.alibaba.fastjson.JSONObject getJSONObject(Object jsonObjectOrArray,
                                                            String key)

getJSONArray

public static com.alibaba.fastjson.JSONArray getJSONArray(String json,
                                                          String key)

getJSONArray

public static com.alibaba.fastjson.JSONArray getJSONArray(Object jsonObjectOrArray,
                                                          String key)

getList

public static <T> List<T> getList(String json,
                                  String key,
                                  Class<T> clazz)

getList

public static <T> List<T> getList(Object jsonObjectOrArray,
                                  String key,
                                  Class<T> clazz)

getSet

public static <T> Set<T> getSet(String json,
                                String key,
                                Class<T> clazz)

getSet

public static <T> Set<T> getSet(Object jsonObjectOrArray,
                                String key,
                                Class<T> clazz)

get

public static <T> T get(String json,
                        String key,
                        Class<T> clazz)

get

public static <T> T get(Object jsonObjectOrArray,
                        String key,
                        Class<T> clazz)

get

public static <T> T get(String json,
                        String key,
                        TypeDef<?> typeDef)

get

public static <T> T get(Object jsonObjectOrArray,
                        String key,
                        TypeDef<?> typeDef)

getJsonObjectOrArray

public static Object getJsonObjectOrArray(String json)