Java 如何使用gson解析json文件?
我试图使用gson从一个大的json文件中读取某些行。问题是我编写的代码不会解析utf-8编码Java 如何使用gson解析json文件?,java,json,parsing,utf-8,gson,Java,Json,Parsing,Utf 8,Gson,我试图使用gson从一个大的json文件中读取某些行。问题是我编写的代码不会解析utf-8编码 Gson gson = new Gson(); Items[] myItems = gson.fromJson(new FileReader("./input/raw-1.json"), Items[].class); System.out.println(gson.toJson(myItems)); Gson gson2 = new GsonBuilder().setPrettyP
Gson gson = new Gson();
Items[] myItems = gson.fromJson(new FileReader("./input/raw-1.json"), Items[].class);
System.out.println(gson.toJson(myItems));
Gson gson2 = new GsonBuilder().setPrettyPrinting().create();
Writer writer = Files.newBufferedWriter(Paths.get("./output/output-sample-test.json"));
gson2.toJson(myItems, writer);
writer.close();
class Items {
long id;
int dayId;
String clientAddress;
String pickupAddress;
String venueName;
String pickupTime;
double pickupLat;
double pickupLon;
double deliveryLat;
double deliveryLon;
}
它会输出这些奇怪的信号:
"clientAddress": "Timisoara, Strada Gheorghe Lazăr nr. 24, bloc Fructus Plaza, ap. 22, et. 7"
我做错了什么?顺便说一下,对不起,我的英语不好。谢谢大家! JSON应该用UTF-8编码
FileReader
假定该文件采用系统中文本文件的默认编码,该编码可能不是UTF-8。如果使用Files.newbuffereder
可以指定编码:
try (Reader reader = Files.newBufferedReader(Paths.get("./input/raw-1.json"), StandardCharsets.UTF_8)) {
Items[] myItems = gson.fromJson(reader, Items[].class);
}
同样,在写入时,您应该指定编码:
try (Writer writer = Files.newBufferedWriter(Paths.get("./output/output-sample-test.json", StandardCharsets.UTF_8)) {
gson2.toJson(myItems, writer);
}
是的,现在开始工作了,很好。非常感谢你!!