It is base in Gson lib and use Annotation Processor.If you can add the @JsonBean annotation to bean,the json parse will be faster;
it can also process the bean without @JsonBean,which will be processed by default Gson.In addition you can use GsonAPT.setGson()to change the default Gson in GsonAPT.
dependencies {
...
compile project(':gsonaptannotation')
apt project(':gsonaptcomplier')
}
@JsonBean public class LittleBean { String littleBeanName;
public String getLittleBeanName() {
return littleBeanName;
}
public void setLittleBeanName(String littleBeanName) {
this.littleBeanName = littleBeanName;
}
public LittleBean() {
}
public LittleBean(String littleBeanName) {
this.littleBeanName = littleBeanName;
}
}
compile will generate the GsonAPT class
TestBean testBean = new TestBean();
String str = GsonAPT.toJson(testBean);
testBean = GsonAPT.fromJson(str,TestBean.class);
Map<Integer, OtherBean> map = new HashMap<>();
map.put(9, new OtherBean(""));
map.put(1, new OtherBean(null));
String mapStr = GsonAPT.toJson(map);
map = GsonAPT.fromJson(mapStr,new TypeToken<Map<Integer, OtherBean>>() {
}.getType());
how much time to parse the small bean:
| times | Gson toJson | GsonAPT toJson | Gson fromJson | GsonAPT fromJson |
|---|---|---|---|---|
| 10 | 3 | 1 | 10 | 1 |
| 10000 | 738 | 363 | 883 | 756 |
| 100000 | 8361 | 4420 | 10616 | 9346 |
how much time to parse the big bean:
| times | Gson toJson | GsonAPT toJson | Gson fromJson | GsonAPT fromJson |
|---|---|---|---|---|
| 1 | 673 | 325 | 811 | 700 |
| 10 | 7748 | 3740 | 9506 | 8182 |
| times | Gson toJson Speed / GsonAPT toJson Speed |
|---|---|
| 10000(small) | 49% |
| 100000(small) | 52% |
| 1(big) | 48% |
| 10(big) | 48% |
| times | Gson fromJson Speed / GsonAPT fromJson Speed |
|---|---|
| 10000(small) | 86% |
| 100000(small) | 88% |
| 1(big) | 86% |
| 10(big) | 86% |
- the field should was public , default or have the get/set method in the bean
- it no support the non-static inner class like the default Gson
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