Spring: Programming questions

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Spring programming questions

Programming questions

Add article information based on IOC and DI.

1. Service layer and Dao layer use IOC method to complete the creation of objects and decouple
2. The Service layer needs to inject Dao objects for decoupling
3. Persistence layer adoption JDBCTemplate
4. Need to use declarative transaction management for transaction control (XML mode)
5. Adopt AOP to pre-enhance the adding method, and the enhancement logic is the console printing pre-enhancement
6. Use spring integrated junitunit testing, the final result display

# 创建数据库
CREATE DATABASE springbootdata;

# 选择使用数据库
USE springbootdata;

# 创建表 t_article 并插入相关数据
DROP TABLE IF EXISTS t_article;
CREATE TABLE t_article (
    id INT(20) NOT NULL AUTO_INCREMENT COMMENT '文章id',
    title VARCHAR(200) DEFAULT NULL COMMENT '文章标题',
    content LONGTEXT COMMENT '文章内容',
    PRIMARY KEY (id)
) ENGINE=INNODB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;

INSERT INTO t_article VALUES ('1', 'Spring Boot基础入门', '从入门到精通讲解...');
INSERT INTO t_article VALUES ('2', 'Spring Cloud基础入门', '从入门到精通讲解...');

# 创建表 t_comment 并插入相关数据
DROP TABLE IF EXISTS t_comment;
CREATE TABLE t_comment (
    id INT(20) NOT NULL AUTO_INCREMENT COMMENT '评论id',
    content LONGTEXT COMMENT '评论内容',
    author VARCHAR(200) DEFAULT NULL COMMENT '评论作者',
    a_id INT(20) DEFAULT NULL COMMENT '关联的文章id',
    PRIMARY KEY (id)
) ENGINE=INNODB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8;

INSERT INTO t_comment VALUES ('1', '很全、很详细', 'lucy', '1');
INSERT INTO t_comment VALUES ('2', '赞一个', 'tom', '1');
INSERT INTO t_comment VALUES ('3', '很详细', 'eric', '1');
INSERT INTO t_comment VALUES ('4', '很好，非常详细', '张三', '1');
INSERT INTO t_comment VALUES ('5', '很不错', '李四', '2');