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deleted file mode 100644
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deleted file mode 100644
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deleted file mode 100644
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+++ /dev/null
@@ -1,142 +0,0 @@
-
-
- 4.0.0
-
- org.springframework.boot
- spring-boot-starter-parent
- 2.7.12
-
-
- com.woniu
- jvm-optimize
- 0.0.1-SNAPSHOT
- jvm-optimize
- jvm-optimize
-
- 8
-
-
-
- org.springframework.boot
- spring-boot-starter-web
-
-
-
- org.projectlombok
- lombok
- true
-
-
- org.springframework.boot
- spring-boot-starter-test
- test
-
-
- org.apache.commons
- commons-lang3
- 3.12.0
-
-
-
-
-
-
-
- org.springframework.boot
- spring-boot-starter-actuator
-
-
-
- org.springframework.boot
- spring-boot-starter-logging
-
-
-
-
-
-
-
-
-
-
-
- mysql
- mysql-connector-java
- 8.0.30
-
-
-
- org.openjdk.jol
- jol-core
- 0.9
-
-
-
- org.mybatis.spring.boot
- mybatis-spring-boot-starter
- 2.3.1
-
-
-
- org.springframework.data
- spring-data-commons
-
-
-
- org.apache.poi
- poi
- 4.1.2
-
-
- org.apache.poi
- poi-ooxml
- 4.1.2
-
-
-
- cn.hutool
- hutool-all
- 5.8.16
-
-
-
-
- com.alibaba
- easyexcel
- 3.3.2
-
-
-
- com.github.ben-manes.caffeine
- caffeine
- 2.9.3
-
-
-
-
-
-
-
-
-
-
-
-
-
- org.springframework.boot
- spring-boot-maven-plugin
-
-
-
- org.projectlombok
- lombok
-
-
-
-
-
-
-
-
-
diff --git a/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/JvmOptimizeApplication.java b/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/JvmOptimizeApplication.java
deleted file mode 100644
index 93f5e8d..0000000
--- a/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/JvmOptimizeApplication.java
+++ /dev/null
@@ -1,15 +0,0 @@
-package com.woniu.jvmoptimize;
-
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-import org.springframework.context.ConfigurableApplicationContext;
-
-//-Xmx100m -Xms100m -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=D:/jvm/heapdemo.hprof
-@SpringBootApplication
-public class JvmOptimizeApplication {
-
- public static void main(String[] args) {
- ConfigurableApplicationContext run = SpringApplication.run(JvmOptimizeApplication.class, args);
- }
-
-}
diff --git a/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/controller/LeakController.java b/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/controller/LeakController.java
deleted file mode 100644
index b9062f8..0000000
--- a/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/controller/LeakController.java
+++ /dev/null
@@ -1,43 +0,0 @@
-package com.woniu.jvmoptimize.controller;
-
-import com.woniu.jvmoptimize.entity.UserEntity;
-import org.springframework.web.bind.annotation.*;
-
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
-@RestController
-@RequestMapping("/leak")
-public class LeakController {
- private static Map userCache = new HashMap<>();
- private static List bigheap = new ArrayList<>();
-
- /**
- * 大量数据 + 处理慢
- */
- @GetMapping("/test")
- public void test1() throws InterruptedException {
- byte[] bytes = new byte[1024 * 1024 * 100];//100m
- Thread.sleep(10 * 1000L);
- }
-
- /**
- * 登录接口 传递名字和id,放入hashmap中
- */
- @PostMapping("/login")
- public void login(String name,Long id){
- userCache.put(id,new UserEntity(id,name));
- }
-
-
- @GetMapping("/bigheap")
- public void bigheap(){
- //3g
- for (int i = 0; i < 1024; i++) {
- bigheap.add(new byte[1024 * 1024 * 3]);
- }
-
- }
-}
diff --git a/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/controller/OOMController.java b/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/controller/OOMController.java
deleted file mode 100644
index 3d0bc24..0000000
--- a/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/controller/OOMController.java
+++ /dev/null
@@ -1,37 +0,0 @@
-package com.woniu.jvmoptimize.controller;
-
-import com.woniu.jvmoptimize.entity.UserEntity;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.PathVariable;
-import org.springframework.web.bind.annotation.RequestMapping;
-import org.springframework.web.bind.annotation.RestController;
-
-import javax.annotation.PostConstruct;
-import java.util.HashMap;
-import java.util.Map;
-
-@RestController
-@RequestMapping("/user")
-public class OOMController {
- private static Map userCache = new HashMap<>();
-
- @PostConstruct
- public void init(){
- userCache.put(0L,new UserEntity(0L,"张三"));
- }
-
- //根据id获取用户信息
- @GetMapping("/{id}")
- public UserEntity user(@PathVariable("id") Long id){
- return userCache.get(id);
- }
-
- //批量创建缓存
- @GetMapping("/createCache")
- public void createCache()
- {
- for (long i = 0; i < 10000000L; i++) {
- userCache.put(i,new UserEntity(i,String.valueOf(i)));
- }
- }
-}
diff --git a/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/entity/Student.java b/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/entity/Student.java
deleted file mode 100644
index ac74343..0000000
--- a/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/entity/Student.java
+++ /dev/null
@@ -1,46 +0,0 @@
-package com.woniu.jvmoptimize.entity;
-
-import java.util.Objects;
-
-public class Student {
- private int id;
- private String name;
- private int classId;
-
- public int getId() {
- return id;
- }
-
- public void setId(int id) {
- this.id = id;
- }
-
- public String getName() {
- return name;
- }
-
- public void setName(String name) {
- this.name = name;
- }
-
- public int getClassId() {
- return classId;
- }
-
- public void setClassId(int classId) {
- this.classId = classId;
- }
-
- @Override
- public boolean equals(Object o) {
- if (this == o) return true;
- if (o == null || getClass() != o.getClass()) return false;
- Student student = (Student) o;
- return id == student.id;
- }
-
- @Override
- public int hashCode() {
- return Objects.hash(id);
- }
-}
diff --git a/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/entity/UserEntity.java b/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/entity/UserEntity.java
deleted file mode 100644
index ba3559a..0000000
--- a/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/entity/UserEntity.java
+++ /dev/null
@@ -1,17 +0,0 @@
-package com.woniu.jvmoptimize.entity;
-
-import lombok.AllArgsConstructor;
-import lombok.Data;
-
-@Data
-public class UserEntity {
- private Long id;
- private String name;
- //每个对象增加1MB的额外内存,让溢出来的更快一些
- //private byte[] bytes = new byte[1024 * 1024];
-
- public UserEntity(Long id, String name) {
- this.id = id;
- this.name = name;
- }
-}
diff --git a/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/leakdemo/demo1/Demo1.java b/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/leakdemo/demo1/Demo1.java
deleted file mode 100644
index 831e089..0000000
--- a/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/leakdemo/demo1/Demo1.java
+++ /dev/null
@@ -1,52 +0,0 @@
-package com.woniu.jvmoptimize.leakdemo.demo1;
-
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.net.URL;
-import java.net.URLConnection;
-import java.sql.*;
-
-//-Xmx50m -Xms50m
-public class Demo1 {
-
- // JDBC driver name and database URL
- static final String JDBC_DRIVER = "com.mysql.cj.jdbc.Driver";
- static final String DB_URL = "jdbc:mysql:///bank1";
-
- // Database credentials
- static final String USER = "root";
- static final String PASS = "123456";
-
- public static void leak() {
- //Connection conn = null;
- Statement stmt = null;
- try (Connection conn = DriverManager.getConnection(DB_URL, USER, PASS)){
-
- // executes a valid query
- stmt = conn.createStatement();
- String sql;
- sql = "SELECT id, account_name FROM account_info";
- ResultSet rs = stmt.executeQuery(sql);
-
- //STEP 4: Extract data from result set
- while (rs.next()) {
- //Retrieve by column name
- int id = rs.getInt("id");
- String name = rs.getString("account_name");
-
- //Display values
- System.out.print("ID: " + id);
- System.out.print(", Name: " + name + "\n");
- }
- } catch(SQLException sqlEx) {
- sqlEx.printStackTrace();
- }
- }
-
- public static void main(String[] args) throws InterruptedException {
- while(true){
- leak();
- }
- }
-}
diff --git a/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/leakdemo/demo2/Demo0.java b/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/leakdemo/demo2/Demo0.java
deleted file mode 100644
index fbe3d9f..0000000
--- a/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/leakdemo/demo2/Demo0.java
+++ /dev/null
@@ -1,12 +0,0 @@
-package com.woniu.jvmoptimize.leakdemo.demo2;
-
-public class Demo0 {
- public static long count = 0;
- public static void main(String[] args) throws InterruptedException {
- while (true){
- Student student = new Student();
- student.setId(1);
- student.setName("张三");
- }
- }
-}
diff --git a/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/leakdemo/demo2/Demo2.java b/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/leakdemo/demo2/Demo2.java
deleted file mode 100644
index 5f8146e..0000000
--- a/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/leakdemo/demo2/Demo2.java
+++ /dev/null
@@ -1,20 +0,0 @@
-package com.woniu.jvmoptimize.leakdemo.demo2;
-
-import java.util.HashMap;
-import java.util.Map;
-
-public class Demo2 {
- public static long count = 0;
- public static Map map = new HashMap<>();
- public static void main(String[] args) throws InterruptedException {
- while (true){
- if(count++ % 100 == 0){
- Thread.sleep(10);
- }
- Student student = new Student();
- student.setId(1);
- student.setName("张三");
- map.put(student,1L);
- }
- }
-}
diff --git a/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/leakdemo/demo2/Student.java b/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/leakdemo/demo2/Student.java
deleted file mode 100644
index e25fdaa..0000000
--- a/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/leakdemo/demo2/Student.java
+++ /dev/null
@@ -1,48 +0,0 @@
-package com.woniu.jvmoptimize.leakdemo.demo2;
-
-import org.apache.commons.lang3.builder.EqualsBuilder;
-import org.apache.commons.lang3.builder.HashCodeBuilder;
-
-public class Student {
- private String name;
- private Integer id;
- private byte[] bytes = new byte[1024 * 1024];
-
- public String getName() {
- return name;
- }
-
- public void setName(String name) {
- this.name = name;
- }
-
- public Integer getId() {
- return id;
- }
-
- public void setId(Integer id) {
- this.id = id;
- }
-
- @Override
- public boolean equals(Object o) {
- if (this == o) {
- return true;
- }
-
- if (o == null || getClass() != o.getClass()) {
- return false;
- }
-
- Student student = (Student) o;
-
- return new EqualsBuilder().append(id, student.id).isEquals();
- }
-
- @Override
- public int hashCode() {
- return new HashCodeBuilder(17, 37).append(id).toHashCode();
- }
-}
-
-
diff --git a/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/leakdemo/demo3/Outer.java b/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/leakdemo/demo3/Outer.java
deleted file mode 100644
index 143970b..0000000
--- a/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/leakdemo/demo3/Outer.java
+++ /dev/null
@@ -1,27 +0,0 @@
-package com.woniu.jvmoptimize.leakdemo.demo3;
-
-import java.io.IOException;
-import java.util.ArrayList;
-
-public class Outer{
- private byte[] bytes = new byte[1024 * 1024]; //外部类持有数据
- private static String name = "测试";
- static class Inner{
- private String name;
- public Inner() {
- this.name = Outer.name;
- }
- }
-
- public static void main(String[] args) throws IOException, InterruptedException {
-// System.in.read();
- int count = 0;
- ArrayList inners = new ArrayList<>();
- while (true){
- if(count++ % 100 == 0){
- Thread.sleep(10);
- }
- inners.add(new Inner());
- }
- }
-}
diff --git a/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/leakdemo/demo4/Outer.java b/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/leakdemo/demo4/Outer.java
deleted file mode 100644
index 5baa5dc..0000000
--- a/day06/jvm-optimize/src/main/java/com/woniu/jvmoptimize/leakdemo/demo4/Outer.java
+++ /dev/null
@@ -1,26 +0,0 @@
-package com.woniu.jvmoptimize.leakdemo.demo4;
-
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.List;
-
-public class Outer {
- private byte[] bytes = new byte[1024];
- public static List newList() {
- List list = new ArrayList() {{
- add("1");
- add("2");
- }};
- return list;
- }
-
- public static void main(String[] args) throws IOException {
- System.in.read();
- int count = 0;
- ArrayList