Posted on 2008-09-08 17:01
G_G 閱讀(2759)
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javaGeneral
主頁：http://code.google.com/apis/protocolbuffers/docs/overview.html
testProto.proto
package?foo.bar;
option?java_package?=?"com.proto";
message?Person?{
??required?string?name?=?1;
??required?int32?id?=?2;
??optional?string?email?=?3;
??enum?PhoneType?{
????MOBILE?=?0;
????HOME?=?1;
????WORK?=?2;
??}
??message?PhoneNumber?{
????required?string?number?=?1;
????optional?PhoneType?type?=?2?[default?=?HOME];
??}
??repeated?PhoneNumber?phone?=?4;
}
運行命令
'/home/kaiyi/proto/bin/protoc'? --java_out=src testProto.proto?
使用(? 本類可用，builder 可改，開用但 list 刪除要使用比較郁悶的方法刪除！)
package?unit;
import?java.util.ArrayList;
import?java.util.Arrays;
import?java.util.Collections;
import?java.util.List;
import?com.google.protobuf.InvalidProtocolBufferException;
import?com.proto.TestProto;
import?com.proto.TestProto.Person;
import?com.proto.TestProto.Person.PhoneNumber;
public?class?Main?{
????public?static?void?main(String[]?args)?throws?InvalidProtocolBufferException?{
????????//空創建
????????Person.Builder?builder?=?Person.newBuilder();
????????builder.setName("liukaiyi");
????????builder.setId(1);
????????
????????builder.setEmail("email");
????????
????????PhoneNumber.Builder?pBuilder1?=?PhoneNumber.newBuilder();
????????pBuilder1.setNumber("1");
????????pBuilder1.setType(TestProto.Person.PhoneType.MOBILE);
????????
????????
????????PhoneNumber.Builder?pBuilder2?=?PhoneNumber.newBuilder();
????????pBuilder2.setNumber("2");
????????pBuilder2.setType(TestProto.Person.PhoneType.HOME);
????????
????????
????????
????????builder.addPhone(pBuilder1);
????????builder.addPhone(pBuilder2);
???????
//此處為存儲到數據庫 或 傳輸！
byte[]?data?=?builder.build().toByteArray()?;
????????for(byte?tb?:?data?)
????????????System.out.print(?(char)tb?);
????????
????????
????????//組建
????????Person?person?=?Person.parseFrom(data);
????????Person.Builder?builder2?=?Person.newBuilder(person);
????????builder2.setEmail("test");
????????
????????PhoneNumber.Builder?pBuilder3?=?PhoneNumber.newBuilder();
????????pBuilder3.setNumber("3");
????????pBuilder3.setType(TestProto.Person.PhoneType.HOME);
????????builder2.addPhone(pBuilder3);
???????
//這 我最不明白的地方 ， list 這 只能 使用 這種方法才可以刪除 list ????
??? ??? List list = new ArrayList(builder2.getPhoneList());
??? ??? List<PhoneNumber> ltmp =? builder2.getPhoneList() ;
??? ??? for(int i=0;i<list.size();i++ ){
??? ??? ??? if(ltmp.get(i).getNumber().equals("2"))
??? ??? ??? ??? list.remove( ltmp.get(i) ) ;
??? ??? }
??? ??? builder2.clearPhone().addAllPhone(list);
??????? builder2.clearEmail();
????????System.out.println(list.size());
????????System.out.println();
????????byte[]?data2?=?builder2.build().toByteArray()?;
????????for(byte?tb?:?data2?)
????????????System.out.print(?(char)tb?);
????????
????????
????????
????????
????}
}