1. 引入类库
<dependency> <groupId>com.alibaba
groupId> <artifactId>druid
artifactId> <version>1.0.31
version>
dependency>
2. 格式化的工具类API
package com.alibaba.druid.sql; public class SQLUtils {
String format(String sq, String dbType); String format(String sq, String dbType, FormatOption option); }
- 其中dbType支持mysql/postgresql/odps/oracle/db2/sqlserver
- option缺省有
SQLUtils.DEFAULT_FORMAT_OPTION(大写)、SQLUtils.DEFAULT_LCASE_FORMAT_OPTION(小写)两种可以选择,也可按需要定制化。
3. 举例:MySQL格式化
@Test public void out(){
String sql = "select * from user where department = '技术部' and name like '%jsk%' and age > 20;"; // 大写(默认) String format = SQLUtils.format(sql, JdbcConstants.MYSQL); System.out.println(format); // 小写 format = SQLUtils.format(sql, JdbcConstants.MYSQL, SQLUtils.DEFAULT_LCASE_FORMAT_OPTION); System.out.println(format); }
输出:
SELECT * FROM user WHERE department = '技术部' AND name LIKE '%jsk%' AND age > 20; select * from user where department = '技术部' and name like '%jsk%' and age > 20;
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