package com.bolingcavalry.jacksondemo.beans;
public class Constant {
/**
* 该字符串的值是个网络地址，该地址对应的内容是个JSON
*/
public final static String TEST_JSON_DATA_URL = "https://raw.githubusercontent.com/zq2599/blog_demos/master/files/twitteer_message.json";
/**
* 用来验证反序列化的JSON字符串
*/
public final static String TEST_JSON_STR = "{\n" +
" \"id\":1125687077,\n" +
" \"text\":\"@stroughtonsmith You need to add a \\\"Favourites\\\" tab to TC/iPhone. Like what TwitterFon did. I can't WAIT for your Twitter App!! :) Any ETA?\",\n" +
" \"fromUserId\":855523, \n" +
" \"toUserId\":815309,\n" +
" \"languageCode\":\"en\"\n" +
"}";
/**
* 用来验证序列化的TwitterEntry实例
*/
public final static TwitterEntry TEST_OBJECT = new TwitterEntry();
/**
* 准备好TEST_OBJECT对象的各个参数
*/
static {
TEST_OBJECT.setId(123456L);
TEST_OBJECT.setFromUserId(101);
TEST_OBJECT.setToUserId(102);
TEST_OBJECT.setText("this is a message for serializer test");
TEST_OBJECT.setLanguageCode("zh");
}}
增加一个Pojo，对应的是一条推特消息：
package com.bolingcavalry.jacksondemo.beans;
/**
* @Description: 推特消息bean
* @author: willzhao E-mail: [email protected]
* @date: 2020/7/4 16:24
*/
public class TwitterEntry {
/**
* 推特消息id
*/
long id;
/**
* 消息内容
*/
String text; /**
* 消息创建者
*/
int fromUserId;
/**
* 消息接收者
*/
int toUserId;
/**
* 语言类型
*/
String languageCode; public long getId() {
return id;
} public void setId(long id) {
this.id = id;
} public String getText() {
return text;
} public void setText(String text) {
this.text = text;
} public int getFromUserId() {
return fromUserId;
} public void setFromUserId(int fromUserId) {
this.fromUserId = fromUserId;
} public int getToUserId() {
return toUserId;
} public void setToUserId(int toUserId) {
this.toUserId = toUserId;
} public String getLanguageCode() {
return languageCode;
} public void setLanguageCode(String languageCode) {
this.languageCode = languageCode;
} public TwitterEntry() {
} public String toString() {
return "[Tweet, id: "+id+", text='"+text+"', from: "+fromUserId+", to: "+toUserId+", lang: "+languageCode+"]";
}}
jacksondemocom.bolingcavalry1.0-SNAPSHOT../pom.xml4.0.0com.bolingcavalrycorecoreDemo project for jackson core useorg.apache.maven.pluginsmaven-compiler-plugin88com.fasterxml.jackson.corejackson-databindorg.slf4jslf4j-log4j12commons-iocommons-ioorg.apache.commonscommons-lang3com.bolingcavalrybeans${project.version}
昨晚和朋友聊天，喝了点咖啡，由于我经常喝茶，很长时间没喝咖啡了，所以失眠了，于是起床读JVM规范，读完后在朋友圈发了一条信息：
JVM Run-Time Data Areas：The Java Virtual Machine defines various run-time data areas that are used during execution of a program. So
Spark SQL supports most commonly used features of HiveQL. However, different HiveQL statements are executed in different manners:
1. DDL statements (e.g. CREATE TABLE, DROP TABLE, etc.)
nginx在运行过程中是否稳定，是否有异常退出过？这里总结几项平时会用到的小技巧。
1. 在error.log中查看是否有signal项，如果有，看看signal是多少。
比如，这是一个异常退出的情况：
$grep signal error.log
2012/12/24 16:39:56 [alert] 13661#0: worker process 13666 exited on s
方法一：常用方法 关闭XML验证
工具栏：windows => preferences => xml => xml files => validation => Indicate when no grammar is specified:选择Ignore即可。
方法二：（个人推荐）
添加 内容如下
<?xml version=
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml&quo
最主要的是使用到了一个jquery的插件jquery.media.js，使用这个插件就很容易实现了。
核心代码
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.
