统一处理Gson序列化的json串中数值类型参数,否则会所有数值类型都被转为Double类型

This commit is contained in:
zhangwei
2018-05-23 19:01:57 +08:00
parent 965c741917
commit 96bcdfe407

View File

@@ -1,6 +1,8 @@
package com.nis.util;
import java.io.File;
import java.io.IOException;
import java.math.BigDecimal;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
@@ -18,10 +20,80 @@ import org.glassfish.jersey.media.multipart.file.FileDataBodyPart;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.TypeAdapter;
import com.google.gson.internal.LinkedTreeMap;
import com.google.gson.reflect.TypeToken;
import com.google.gson.stream.JsonReader;
import com.google.gson.stream.JsonToken;
import com.google.gson.stream.JsonWriter;
import com.nis.exceptions.MaatConvertException;
import com.nis.util.httpclient.ClientUtil;
public class ConfigServiceUtil {
private static Gson gson = new GsonBuilder()
.registerTypeAdapter(new TypeToken<Map>() {}.getType(), new MapTypeAdapter())
.registerTypeAdapter(new TypeToken<List>() {}.getType(), new MapTypeAdapter())
.create();
public static class MapTypeAdapter extends TypeAdapter<Object> {
@Override
public Object read(JsonReader in) throws IOException {
JsonToken token = in.peek();
switch (token) {
case BEGIN_ARRAY:
List<Object> list = new ArrayList<Object>();
in.beginArray();
while (in.hasNext()) {
list.add(read(in));
}
in.endArray();
return list;
case BEGIN_OBJECT:
Map<String, Object> map = new LinkedTreeMap<String, Object>();
in.beginObject();
while (in.hasNext()) {
map.put(in.nextName(), read(in));
}
in.endObject();
return map;
case STRING:
return in.nextString();
case NUMBER:
String temp = in.nextString();
BigDecimal dbNum = new BigDecimal(temp);
BigDecimal maxLong = new BigDecimal(Long.MAX_VALUE);
BigDecimal maxInteger = new BigDecimal(Integer.MAX_VALUE);
// 数字超过long的最大值返回BigDecimal类型
if (dbNum.compareTo(maxLong)==1) {
return dbNum;
}else if(dbNum.compareTo(maxInteger)==1){
long lngNum = Long.parseLong(temp);
return lngNum;
}else{
int lngNum = Integer.parseInt(temp);
return lngNum;
}
case BOOLEAN:
return in.nextBoolean();
case NULL:
in.nextNull();
return null;
default:
throw new IllegalStateException();
}
}
@Override
public void write(JsonWriter out, Object value) throws IOException {
// 序列化无需实现
}
}
/**
* 从后台服务获取compileid,groupid,regionid
* @param type 1是compileid,2是groupid,3是regionid
@@ -45,15 +117,11 @@ public class ConfigServiceUtil {
Response response= header.get();
if( response.getStatus() == 200){
result= response.readEntity(String.class);
Gson gson=new GsonBuilder().disableHtmlEscaping()
.excludeFieldsWithoutExposeAnnotation()
.create();
Map<String, Object> resMap = gson.fromJson(result,Map.class);
if(!StringUtil.isEmpty(resMap)){
Map<String, Object> dataMap = (Map<String, Object>)resMap.get("data");
if(!StringUtil.isEmpty(dataMap)){
list = (List<Integer>)dataMap.get("pzIdList");
}else{
throw new MaatConvertException("<spring:message code=\"request_service_failed\"/>:"+response.readEntity(String.class));
}
@@ -211,16 +279,7 @@ public class ConfigServiceUtil {
}
public static void main(String[] args) {
try {
//创建连接
WebTarget wt = ClientUtil.getWebTarger("http://10.0.6.30:8080/maatRest/service/cfg/v1/getCompileId?sourceName=CONFIG_COMPILE&num=1");
//获取响应结果
Builder header = wt.request(MediaType.APPLICATION_JSON).header("Content-Type", MediaType.APPLICATION_JSON);
Response response= header.get();
if( response.getStatus() == 200){
String result= response.readEntity(String.class);
}else{
throw new MaatConvertException("<spring:message code=\"request_service_failed\"/>:"+response.readEntity(String.class));
}
getId(1,1);
} catch (Exception e) {
e.printStackTrace();
}