Write ObjectNode to JSON String with UTF-8 Characters to Escaped ASCII
62,128
Solution 1
You should enable the JsonGenerator feature which controls the escaping of the non-ASCII characters. Here is an example:
ObjectMapper mapper = new ObjectMapper();
mapper.getFactory().configure(JsonGenerator.Feature.ESCAPE_NON_ASCII, true);
ObjectNode node = mapper.getNodeFactory().objectNode();
node.put("field1", "Maël Hörz");
System.out.println(mapper.writeValueAsString(node));
The output is:
{"field1":"Ma\u00EBl H\u00F6rz"}
Solution 2
JsonGenerator is deprecated use JsonWriteFeature instead of it
mapper.getFactory().configure(JsonWriteFeature.ESCAPE_NON_ASCII.mappedFeature(), true);
Author by
ricb
Updated on January 27, 2020Comments
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ricb over 4 years
I would like to write the contents of Jackson's
ObjectNode
to a string with the UTF-8 characters written as ASCII (Unicode escaped).Here is a sample method:
private String writeUnicodeString() { ObjectMapper mapper = new ObjectMapper(); ObjectNode node = mapper.getNodeFactory().objectNode(); node.put("field1", "Maël Hörz"); return node.toString(); }
By default, this outputs:
{"field1":"Maël Hörz"}
What I would like it to output is:
{"field1":"Ma\u00EBl H\u00F6rz"}
How can I accomplish this?
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Moebius over 9 yearsOn java play 2.3, the import are : com.fasterxml.jackson.databind.node.ObjectNode com.fasterxml.jackson.databind.ObjectMapper