springboot分布式事务管理（atomikos）

Love The Way You Lie 2022-05-10 05:30 208阅读 0赞

1.引用jta-atomikos架包

1.  `<dependency>`
2.  `<groupId>org.springframework.boot</groupId>`
3.  `<artifactId>spring-boot-starter-jta-atomikos</artifactId>`
4.  `</dependency>`

2,首先配置数据源，因为是要演示分布式事务管理所以要配置多个数据源（2个）

1.  `# Mysql 1`
2.  `mysql.datasource.test1.url = jdbc:mysql://localhost:3306/test01?useUnicode=true&characterEncoding=utf-8`
3.  `mysql.datasource.test1.username = root`
4.  `mysql.datasource.test1.password = root`
5.  `mysql.datasource.test1.minPoolSize = 3`
6.  `mysql.datasource.test1.maxPoolSize = 25`
7.  `mysql.datasource.test1.maxLifetime = 20000`
8.  `mysql.datasource.test1.borrowConnectionTimeout = 30`
9.  `mysql.datasource.test1.loginTimeout = 30`
10. `mysql.datasource.test1.maintenanceInterval = 60`
11. `mysql.datasource.test1.maxIdleTime = 60`
12. `mysql.datasource.test1.testQuery = select 1`
13.  
14.  
15. `# Mysql 2`
16. `mysql.datasource.test2.url =jdbc:mysql://localhost:3306/test02?useUnicode=true&characterEncoding=utf-8`
17. `mysql.datasource.test2.username =root`
18. `mysql.datasource.test2.password =root`
19.  
20. `mysql.datasource.test2.minPoolSize = 3`
21. `mysql.datasource.test2.maxPoolSize = 25`
22. `mysql.datasource.test2.maxLifetime = 20000`
23. `mysql.datasource.test2.borrowConnectionTimeout = 30`
24. `mysql.datasource.test2.loginTimeout = 30`
25. `mysql.datasource.test2.maintenanceInterval = 60`
26. `mysql.datasource.test2.maxIdleTime = 60`
27. `mysql.datasource.test2.testQuery = select 1`

3，配置读取数据库属性文件

DBConfig1.java

1.  `package com.itmayiedu.config;`
2.   
3.  `import org.springframework.boot.context.properties.ConfigurationProperties;`
4.   
5.  `@ConfigurationProperties(prefix = "mysql.datasource.test1")`
6.  `public class DBConfig1 {`
7.   
8.  `private String url;`
9.  `private String username;`
10. `private String password;`
11. `private int minPoolSize;`
12. `private int maxPoolSize;`
13. `private int maxLifetime;`
14. `private int borrowConnectionTimeout;`
15. `private int loginTimeout;`
16. `private int maintenanceInterval;`
17. `private int maxIdleTime;`
18. `private String testQuery;`
19. `public String getUrl() {`
20. `return url;`
21. `}`
22. `public void setUrl(String url) {`
23. `this.url = url;`
24. `}`
25. `public String getUsername() {`
26. `return username;`
27. `}`
28. `public void setUsername(String username) {`
29. `this.username = username;`
30. `}`
31. `public String getPassword() {`
32. `return password;`
33. `}`
34. `public void setPassword(String password) {`
35. `this.password = password;`
36. `}`
37. `public int getMinPoolSize() {`
38. `return minPoolSize;`
39. `}`
40. `public void setMinPoolSize(int minPoolSize) {`
41. `this.minPoolSize = minPoolSize;`
42. `}`
43. `public int getMaxPoolSize() {`
44. `return maxPoolSize;`
45. `}`
46. `public void setMaxPoolSize(int maxPoolSize) {`
47. `this.maxPoolSize = maxPoolSize;`
48. `}`
49. `public int getMaxLifetime() {`
50. `return maxLifetime;`
51. `}`
52. `public void setMaxLifetime(int maxLifetime) {`
53. `this.maxLifetime = maxLifetime;`
54. `}`
55. `public int getBorrowConnectionTimeout() {`
56. `return borrowConnectionTimeout;`
57. `}`
58. `public void setBorrowConnectionTimeout(int borrowConnectionTimeout) {`
59. `this.borrowConnectionTimeout = borrowConnectionTimeout;`
60. `}`
61. `public int getLoginTimeout() {`
62. `return loginTimeout;`
63. `}`
64. `public void setLoginTimeout(int loginTimeout) {`
65. `this.loginTimeout = loginTimeout;`
66. `}`
67. `public int getMaintenanceInterval() {`
68. `return maintenanceInterval;`
69. `}`
70. `public void setMaintenanceInterval(int maintenanceInterval) {`
71. `this.maintenanceInterval = maintenanceInterval;`
72. `}`
73. `public int getMaxIdleTime() {`
74. `return maxIdleTime;`
75. `}`
76. `public void setMaxIdleTime(int maxIdleTime) {`
77. `this.maxIdleTime = maxIdleTime;`
78. `}`
79. `public String getTestQuery() {`
80. `return testQuery;`
81. `}`
82. `public void setTestQuery(String testQuery) {`
83. `this.testQuery = testQuery;`
84. `}`
85.  
86. `}`
87.  
88.

DBConfig2.java

1.  `package com.itmayiedu.config;`
2.   
3.  `import org.springframework.boot.context.properties.ConfigurationProperties;`
4.   
5.  `@ConfigurationProperties(prefix = "mysql.datasource.test2")`
6.  `public class DBConfig2 {`
7.   
8.  `private String url;`
9.  `private String username;`
10. `private String password;`
11. `private int minPoolSize;`
12. `private int maxPoolSize;`
13. `private int maxLifetime;`
14. `private int borrowConnectionTimeout;`
15. `private int loginTimeout;`
16. `private int maintenanceInterval;`
17. `private int maxIdleTime;`
18. `private String testQuery;`
19. `public String getUrl() {`
20. `return url;`
21. `}`
22. `public void setUrl(String url) {`
23. `this.url = url;`
24. `}`
25. `public String getUsername() {`
26. `return username;`
27. `}`
28. `public void setUsername(String username) {`
29. `this.username = username;`
30. `}`
31. `public String getPassword() {`
32. `return password;`
33. `}`
34. `public void setPassword(String password) {`
35. `this.password = password;`
36. `}`
37. `public int getMinPoolSize() {`
38. `return minPoolSize;`
39. `}`
40. `public void setMinPoolSize(int minPoolSize) {`
41. `this.minPoolSize = minPoolSize;`
42. `}`
43. `public int getMaxPoolSize() {`
44. `return maxPoolSize;`
45. `}`
46. `public void setMaxPoolSize(int maxPoolSize) {`
47. `this.maxPoolSize = maxPoolSize;`
48. `}`
49. `public int getMaxLifetime() {`
50. `return maxLifetime;`
51. `}`
52. `public void setMaxLifetime(int maxLifetime) {`
53. `this.maxLifetime = maxLifetime;`
54. `}`
55. `public int getBorrowConnectionTimeout() {`
56. `return borrowConnectionTimeout;`
57. `}`
58. `public void setBorrowConnectionTimeout(int borrowConnectionTimeout) {`
59. `this.borrowConnectionTimeout = borrowConnectionTimeout;`
60. `}`
61. `public int getLoginTimeout() {`
62. `return loginTimeout;`
63. `}`
64. `public void setLoginTimeout(int loginTimeout) {`
65. `this.loginTimeout = loginTimeout;`
66. `}`
67. `public int getMaintenanceInterval() {`
68. `return maintenanceInterval;`
69. `}`
70. `public void setMaintenanceInterval(int maintenanceInterval) {`
71. `this.maintenanceInterval = maintenanceInterval;`
72. `}`
73. `public int getMaxIdleTime() {`
74. `return maxIdleTime;`
75. `}`
76. `public void setMaxIdleTime(int maxIdleTime) {`
77. `this.maxIdleTime = maxIdleTime;`
78. `}`
79. `public String getTestQuery() {`
80. `return testQuery;`
81. `}`
82. `public void setTestQuery(String testQuery) {`
83. `this.testQuery = testQuery;`
84. `}`
85.  
86. `}`

4,配置TestMyBatisConfig1，TestMyBatisConfig2，将两个数据源放入atomikos进行一个管理

TestMyBatisConfig1

1.  `package com.itmayiedu.datasource;`
2.   
3.  `import java.sql.SQLException;`
4.   
5.  `import javax.sql.DataSource;`
6.   
7.  `import org.apache.ibatis.session.SqlSessionFactory;`
8.  `import org.mybatis.spring.SqlSessionFactoryBean;`
9.  `import org.mybatis.spring.SqlSessionTemplate;`
10. `import org.mybatis.spring.annotation.MapperScan;`
11. `import org.springframework.beans.factory.annotation.Qualifier;`
12. `import org.springframework.boot.jta.atomikos.AtomikosDataSourceBean;`
13. `import org.springframework.context.annotation.Bean;`
14. `import org.springframework.context.annotation.Configuration;`
15. `import org.springframework.context.annotation.Primary;`
16.  
17. `import com.itmayiedu.config.DBConfig1;`
18. `import com.mysql.jdbc.jdbc2.optional.MysqlXADataSource;`
19.  
20. `@Configuration`
21. `@MapperScan(basePackages = "com.itmayiedu.test01", sqlSessionTemplateRef = "testSqlSessionTemplate")`
22. `public class TestMyBatisConfig1 {`
23.  
24. `// 配置数据源`
25. `@Primary`
26. `@Bean(name = "testDataSource")`
27. `public DataSource testDataSource(DBConfig1 testConfig) throws SQLException {`
28. `MysqlXADataSource mysqlXaDataSource = new MysqlXADataSource();`
29. `mysqlXaDataSource.setUrl(testConfig.getUrl());`
30. `mysqlXaDataSource.setPinGlobalTxToPhysicalConnection(true);`
31. `mysqlXaDataSource.setPassword(testConfig.getPassword());`
32. `mysqlXaDataSource.setUser(testConfig.getUsername());`
33. `mysqlXaDataSource.setPinGlobalTxToPhysicalConnection(true);`
34.  
35. `AtomikosDataSourceBean xaDataSource = new AtomikosDataSourceBean();`
36. `xaDataSource.setXaDataSource(mysqlXaDataSource);`
37. `xaDataSource.setUniqueResourceName("testDataSource");`
38.  
39. `xaDataSource.setMinPoolSize(testConfig.getMinPoolSize());`
40. `xaDataSource.setMaxPoolSize(testConfig.getMaxPoolSize());`
41. `xaDataSource.setMaxLifetime(testConfig.getMaxLifetime());`
42. `xaDataSource.setBorrowConnectionTimeout(testConfig.getBorrowConnectionTimeout());`
43. `xaDataSource.setLoginTimeout(testConfig.getLoginTimeout());`
44. `xaDataSource.setMaintenanceInterval(testConfig.getMaintenanceInterval());`
45. `xaDataSource.setMaxIdleTime(testConfig.getMaxIdleTime());`
46. `xaDataSource.setTestQuery(testConfig.getTestQuery());`
47. `return xaDataSource;`
48. `}`
49. `@Primary`
50. `@Bean(name = "testSqlSessionFactory")`
51. `public SqlSessionFactory testSqlSessionFactory(@Qualifier("testDataSource") DataSource dataSource)`
52. `throws Exception {`
53. `SqlSessionFactoryBean bean = new SqlSessionFactoryBean();`
54. `bean.setDataSource(dataSource);`
55. `return bean.getObject();`
56. `}`
57.  
58. `@Primary`
59. `@Bean(name = "testSqlSessionTemplate")`
60. `public SqlSessionTemplate testSqlSessionTemplate(`
61. `@Qualifier("testSqlSessionFactory") SqlSessionFactory sqlSessionFactory) throws Exception {`
62. `return new SqlSessionTemplate(sqlSessionFactory);`
63. `}`
64. `}`

TestMyBatisConfig2

1.  `package com.itmayiedu.datasource;`
2.   
3.  `import java.sql.SQLException;`
4.   
5.  `import javax.sql.DataSource;`
6.   
7.  `import org.apache.ibatis.session.SqlSessionFactory;`
8.  `import org.mybatis.spring.SqlSessionFactoryBean;`
9.  `import org.mybatis.spring.SqlSessionTemplate;`
10. `import org.mybatis.spring.annotation.MapperScan;`
11. `import org.springframework.beans.factory.annotation.Qualifier;`
12. `import org.springframework.boot.jta.atomikos.AtomikosDataSourceBean;`
13. `import org.springframework.context.annotation.Bean;`
14. `import org.springframework.context.annotation.Configuration;`
15.  
16. `import com.itmayiedu.config.DBConfig1;`
17. `import com.itmayiedu.config.DBConfig2;`
18. `import com.mysql.jdbc.jdbc2.optional.MysqlXADataSource;`
19.  
20. `@Configuration`
21. `//basePackages 最好分开配置 如果放在同一个文件夹可能会报错`
22. `@MapperScan(basePackages = "com.itmayiedu.test02", sqlSessionTemplateRef = "testSqlSessionTemplate2")`
23. `public class TestMyBatisConfig2 {`
24.  
25. `// 配置数据源`
26. `@Bean(name = "testDataSource2")`
27. `public DataSource testDataSource(DBConfig2 testConfig) throws SQLException {`
28. `MysqlXADataSource mysqlXaDataSource = new MysqlXADataSource();`
29. `mysqlXaDataSource.setUrl(testConfig.getUrl());`
30. `mysqlXaDataSource.setPinGlobalTxToPhysicalConnection(true);`
31. `mysqlXaDataSource.setPassword(testConfig.getPassword());`
32. `mysqlXaDataSource.setUser(testConfig.getUsername());`
33. `mysqlXaDataSource.setPinGlobalTxToPhysicalConnection(true);`
34.  
35. `AtomikosDataSourceBean xaDataSource = new AtomikosDataSourceBean();`
36. `xaDataSource.setXaDataSource(mysqlXaDataSource);`
37. `xaDataSource.setUniqueResourceName("testDataSource2");`
38.  
39. `xaDataSource.setMinPoolSize(testConfig.getMinPoolSize());`
40. `xaDataSource.setMaxPoolSize(testConfig.getMaxPoolSize());`
41. `xaDataSource.setMaxLifetime(testConfig.getMaxLifetime());`
42. `xaDataSource.setBorrowConnectionTimeout(testConfig.getBorrowConnectionTimeout());`
43. `xaDataSource.setLoginTimeout(testConfig.getLoginTimeout());`
44. `xaDataSource.setMaintenanceInterval(testConfig.getMaintenanceInterval());`
45. `xaDataSource.setMaxIdleTime(testConfig.getMaxIdleTime());`
46. `xaDataSource.setTestQuery(testConfig.getTestQuery());`
47. `return xaDataSource;`
48. `}`
49.  
50. `@Bean(name = "testSqlSessionFactory2")`
51. `public SqlSessionFactory testSqlSessionFactory(@Qualifier("testDataSource2") DataSource dataSource)`
52. `throws Exception {`
53. `SqlSessionFactoryBean bean = new SqlSessionFactoryBean();`
54. `bean.setDataSource(dataSource);`
55. `return bean.getObject();`
56. `}`
57.  
58. `@Bean(name = "testSqlSessionTemplate2")`
59. `public SqlSessionTemplate testSqlSessionTemplate(`
60. `@Qualifier("testSqlSessionFactory2") SqlSessionFactory sqlSessionFactory) throws Exception {`
61. `return new SqlSessionTemplate(sqlSessionFactory);`
62. `}`
63. `}`

外加附上service层代码

1.  `package com.itmayiedu.test01.service;`
2.   
3.  `import org.springframework.beans.factory.annotation.Autowired;`
4.  `import org.springframework.stereotype.Service;`
5.  `import org.springframework.transaction.annotation.Transactional;`
6.   
7.  `import com.itmayiedu.entity.UserEntity;`
8.  `import com.itmayiedu.test01.mapping.UserMapper1;`
9.  `import com.itmayiedu.test02.mapping.UserMapper2;`
10.  
11. `@Service`
12. `public class UserService1 {`
13. `@Autowired`
14. `private UserMapper1 userMapper1;`
15.  
16. `@Autowired`
17. `private UserMapper2 userMapper2;`
18.  
19. `@Transactional`
20. `public int addUser1 (UserEntity userEntity){`
21. `userMapper2.addUser(userEntity.getName(), userEntity.getAge());`
22. `userMapper1.addUser(userEntity.getName(), userEntity.getAge());`
23. `return 1;`
24. `}`
25. `}`

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