java protobuf json_protobuf与json、字符串之间的互转

测试程序

public static void main(String[] args) throws IOException {

// PersonProtos.Person是protobuf生成的java类

PersonProtos.Person.Builder personBuilder = PersonProtos.Person.newBuilder();

// 定义一个相同结构的json类并赋值

JsonObject abb = new JsonObject();

JsonObject cbb = new JsonObject();

JsonObject gbb = new JsonObject();

gbb.addProperty("apply",apply);

gbb.addProperty("none","none");

cbb.addProperty("applies_to_location",applies_to_location);

abb.addProperty("age",21);

abb.addProperty("name","John");

abb.addProperty("email","[email protected]");

abb.add("point_attribution",cbb);

cbb.add("abb",gbb);

String json = abb.toString();

// json转protobuf

JsonFormat.merge(json, personBuilder);

StringBuffer a = new StringBuffer();

// 字符串格式

a.append("age:30,name:'John',email:'[email protected]',point_attribution {applies_to_location: 2.0,abb {\n" +

" apply: 1.0\n" +

" }\n" +

"}");

// 文本转protobuf

TextFormat.merge(a.toString(),personBuilder);

System.out.println(TextFormat.printToString(personBuilder.build()));

System.out.println(JsonFormat.printToString(personBuilder.build()));

}