导包 ``` import com.alibaba.fastjson.JSON; import com.alibaba.fastjson.JSONObject; JSONObject data = json.getJSONObject("data"); String str = "{\n" + " \"code\": 0,\n" + " \"msg\": \"操作成功\",\n" + " \"data\": {\n" + " \"sessionId\": \"fdsafdasfdefdassfda\",\n" + " \"msgId\": \"08846110-6175-4050-a87e-7ff51a2c0790_1524646704115\",\n" + " \"answerType\": \"7\",\n" + " \"guideList\": [\n" + " {\n" + " \"order\": \"1\",\n" + " \"question\": \"玩玩啊1\",\n" + " \"question_id\": \"e2dbfda3-4219-11e8-bb48-0026b961fb7b\",\n" + " \"weight\": 1,\n" + " \"kbName\": \"关联问题测试\",\n" + " \"content\": \"来啊,快活啊\",\n" + " \"msgType\": \"text\"\n" + " },\n" + " {\n" + " \"order\": \"2\",\n" + " \"question\": \"玩玩2\",\n" + " \"question_id\": \"e6bf08b0-4219-11e8-bb48-0026b961fb7b\",\n" + " \"weight\": 1,\n" + " \"kbName\": \"关联问题测试\",\n" + " \"content\": \"水电费\",\n" + " \"msgType\": \"text\"\n" + " },\n" + " {\n" + " \"order\": \"3\",\n" + " \"question\": \"玩玩3\",\n" + " \"question_id\": \"eac14cb9-4219-11e8-bb48-0026b961fb7b\",\n" + " \"weight\": 1,\n" + " \"kbName\": \"关联问题测试\",\n" + " \"content\": \"3\",\n" + " \"msgType\": \"text\"\n" + " },\n" + " {\n" + " \"order\": \"4\",\n" + " \"question\": \"玩玩4\",\n" + " \"question_id\": \"ee59d09e-4219-11e8-bb48-0026b961fb7b\",\n" + " \"weight\": 1,\n" + " \"kbName\": \"关联问题测试\",\n" + " \"content\": \"4\",\n" + " \"msgType\": \"text\"\n" + " },\n" + " {\n" + " \"order\": \"5\",\n" + " \"question\": \"玩玩5\",\n" + " \"question_id\": \"f1f2f867-4219-11e8-bb48-0026b961fb7b\",\n" + " \"weight\": 1,\n" + " \"kbName\": \"关联问题测试\",\n" + " \"content\": \"5.腰疼,不来了\",\n" + " \"msgType\": \"text\"\n" + " }\n" + " ],\n" + " \"answerList\": [\n" + " {\n" + " \"answer\": \"来啊,快活啊\",\n" + " \"weight\": 0.5995264,\n" + " \"msgType\": \"text\"\n" + " }\n" + " ],\n" + " \"guideText\": \"范围呢引导问题:\",\n" + " \"evaluateSwitch\": null\n" + " }\n" + "}"; JSONObject json = JSON.parseObject(str);
JSONObject data = json.getJSONObject("data");
删除JsonObject 中的某个字段用 data.remove("sessionId"); System.out.println(data); ```