FastJson 使用

类库路径

compile 'com.alibaba:fastjson:1.+'

JsonObject

{    "four": "four",    "one": "one",    "trhee": "trhee",    "two": "two"}

• 使用集合解析

  Map<String,String> data=JSON.parseObject(str,new TypeReference<Map<String,String>>(){}.getType());

• 使用 key-value 的BEAN解析

  public class JsonBean {    private String four;    private String one;    private String trhee;    private String two;}JsonBean data = JSON.parseObject(str,JsonBean.class);

JsonArray

    [        {            "four": "four",            "one": "one",            "trhee": "trhee",            "two": "two"        }    ]

• 使用集合解析

  List<Map<String,String>> data=JSON.parseObject(str,new TypeReference<List<Map<String,String>>>(){}.getType());

• 使用 key-value 的BEAN解析

  public class JsonBean {    private String four;    private String one;    private String trhee;    private String two;}List<JsonBean> data=JSON.parseObject(str,new TypeReference<List<JsonBean>>(){}.getType());

复杂的json

[    {        "one": [            {                "one1": "one1"            },            {                "one2": "one2"            },            {                "one3": "one3"            },            {                "one4": "one4"            }        ],        "two": [            {                "two1": "two1"            },            {                "two2": "two2"            },            {                "two3": "two3"            }        ]    }]

• 使用集合解析

  List<Map<String,List<Map<String,String>>>> data = JSON.parseObject(str,new TypeReference<List<Map<String,List<Map<String,String>>>>>(){}.getType());

• 使用 list 的Bean 解析

      public class JsonBean {    private List<OneBean> one;    private List<TwoBean> two;    public List<OneBean> getOne() {        return one;    }    public void setOne(List<OneBean> one) {        this.one = one;    }    public List<TwoBean> getTwo() {        return two;    }    public void setTwo(List<TwoBean> two) {        this.two = two;    }    public static class OneBean {        /**         * one1 : one1         * one2 : one2         * one3 : one3         * one4 : one4         */        private String one1;        private String one2;        private String one3;        private String one4;        public String getOne1() {            return one1;        }        public void setOne1(String one1) {            this.one1 = one1;        }        public String getOne2() {            return one2;        }        public void setOne2(String one2) {            this.one2 = one2;        }        public String getOne3() {            return one3;        }        public void setOne3(String one3) {            this.one3 = one3;        }        public String getOne4() {            return one4;        }        public void setOne4(String one4) {            this.one4 = one4;        }    }    public static class TwoBean {        /**         * two1 : two1         * two2 : two2         * two3 : two3         */        private String two1;        private String two2;        private String two3;        public String getTwo1() {            return two1;        }        public void setTwo1(String two1) {            this.two1 = two1;        }        public String getTwo2() {            return two2;        }        public void setTwo2(String two2) {            this.two2 = two2;        }        public String getTwo3() {            return two3;        }        public void setTwo3(String two3) {            this.two3 = two3;        }    }}JsonBean data = JSON.parseObject(str,JsonBean.class);

将对象转换为字符串

MapListList<Map<..>>List<Bean>String jsonString = JSON.toJSONString(Map | List | List<Map<..>> | List<Bean>);