Java tutorial
/* * Copyright 1999-2101 Alibaba Group. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.alibaba.json.test; import java.io.InputStream; import java.text.NumberFormat; import junit.framework.TestCase; import org.apache.commons.io.IOUtils; import org.codehaus.jackson.map.ObjectMapper; import com.alibaba.fastjson.parser.DefaultJSONParser; public class JSONParser2Test extends TestCase { private String text; private int COUNT = 1000 * 10; protected void setUp() throws Exception { // String resource = "json/Bug_0_Test.json"; String resource = "json/Bug_0_Test.json"; InputStream is = Thread.currentThread().getContextClassLoader().getResourceAsStream(resource); text = IOUtils.toString(is); is.close(); // text = // "[{\"S\":321061,\"T\":\"GetAttributeResp\"},{\"ERROR\":null,\"TS\":0,\"VAL\":{\"SqlList\":[{\"BatchSizeMax\":0,\"BatchSizeTotal\":0,\"ConcurrentMax\":1,\"DataSource\":\"jdbc:wrap-jdbc:filters=default,encoding:name=ds-offer:jdbc:mysql://100.10.10.10:8066/xxx\",\"EffectedRowCount\":0,\"ErrorCount\":0,\"ExecuteCount\":5,\"FetchRowCount\":5,\"File\":null,\"ID\":2001,\"LastError\":null,\"LastTime\":1292742908178,\"MaxTimespan\":16,\"MaxTimespanOccurTime\":1292742668191,\"Name\":null,\"RunningCount\":0,\"SQL\":\"SELECT @@SQL_MODE\",\"TotalTime\":83}]}}]"; // text = "{\"name\":null,\"flag\":true}"; // text = "-6470204979932713723"; // text = "[-5.041598256063065E-20,-7210028408342716000]"; // text = "[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19]"; // text = "{\"S\":321061,\"T\":\"GetAttributeResp\"}"; // text = "{\"?Z,??\": true,\"?>wj\\\"\\\\_c~M?SN?!?k$|HEK'\": -1377757625945773954}"; } public void test_0() throws Exception { for (int i = 0; i < 50; ++i) { f_ali_json(); f_jackson(); // f_simple_json(); System.out.println(); } System.out.println(); System.out.println(text); } public void f_ali_json() throws Exception { // String input = "[{\"a\":3}]"; long startNano = System.nanoTime(); for (int i = 0; i < COUNT; ++i) { DefaultJSONParser parser = new DefaultJSONParser(text); parser.parse(); } long nano = System.nanoTime() - startNano; System.out.println("fast-json \t: " + NumberFormat.getInstance().format(nano)); } private void f_jackson() throws Exception { long startNano = System.nanoTime(); for (int i = 0; i < COUNT; ++i) { ObjectMapper mapper = new ObjectMapper(); mapper.readTree(text); // JsonNode head = node.get(0); // JsonNode body = node.get(1); } long nano = System.nanoTime() - startNano; System.out.println("jackson \t: " + NumberFormat.getInstance().format(nano)); } }