├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── .gitignore ├── src └── main │ ├── java │ └── com │ │ └── example │ │ └── springposgres │ │ ├── repository │ │ └── CustomerRepository.java │ │ ├── DemoApplication.java │ │ ├── model │ │ ├── CustomerUI.java │ │ └── Customer.java │ │ └── controller │ │ └── CustomerController.java │ └── resources │ └── application.properties ├── README.md ├── gradlew.bat └── gradlew /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/RajeshBhojwani/springboot-postgresql/HEAD/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | distributionBase=GRADLE_USER_HOME 2 | distributionPath=wrapper/dists 3 | distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.2-bin.zip 4 | zipStoreBase=GRADLE_USER_HOME 5 | zipStorePath=wrapper/dists 6 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | .gradle 2 | /build/ 3 | /bin/ 4 | .vscode 5 | !gradle/wrapper/gradle-wrapper.jar 6 | 7 | ### STS ### 8 | .apt_generated 9 | .classpath 10 | .factorypath 11 | .project 12 | .settings 13 | settings.gradle 14 | .springBeans 15 | .sts4-cache 16 | 17 | ### IntelliJ IDEA ### 18 | .idea 19 | *.iws 20 | *.iml 21 | *.ipr 22 | /out/ 23 | 24 | ### NetBeans ### 25 | /nbproject/private/ 26 | /nbbuild/ 27 | /dist/ 28 | /nbdist/ 29 | /.nb-gradle/ -------------------------------------------------------------------------------- /src/main/java/com/example/springposgres/repository/CustomerRepository.java: -------------------------------------------------------------------------------- 1 | package com.example.springposgres.repository; 2 | 3 | import java.util.List; 4 | 5 | import com.example.springposgres.model.Customer; 6 | 7 | import org.springframework.data.repository.CrudRepository; 8 | 9 | public interface CustomerRepository extends CrudRepository{ 10 | List findByFirstName(String FirstName); 11 | List findAll(); 12 | } -------------------------------------------------------------------------------- /src/main/resources/application.properties: -------------------------------------------------------------------------------- 1 | server.port=9090 2 | spring.jpa.database=POSTGRESQL 3 | spring.datasource.platform=postgres 4 | spring.datasource.url=jdbc:postgresql://localhost:5432/postgres 5 | spring.datasource.username=postgres 6 | spring.datasource.password=root 7 | spring.jpa.show-sql=true 8 | spring.jpa.generate-ddl=true 9 | spring.jpa.hibernate.ddl-auto=create-drop 10 | spring.jpa.properties.hibernate.jdbc.lob.non_contextual_creation=true 11 | -------------------------------------------------------------------------------- /src/main/java/com/example/springposgres/DemoApplication.java: -------------------------------------------------------------------------------- 1 | package com.example.springposgres; 2 | 3 | import com.example.springposgres.repository.CustomerRepository; 4 | 5 | import org.springframework.beans.factory.annotation.Autowired; 6 | import org.springframework.boot.SpringApplication; 7 | import org.springframework.boot.autoconfigure.SpringBootApplication; 8 | 9 | @SpringBootApplication 10 | public class DemoApplication { 11 | 12 | @Autowired 13 | CustomerRepository repository; 14 | public static void main(String[] args) { 15 | SpringApplication.run(DemoApplication.class, args); 16 | } 17 | 18 | 19 | 20 | } 21 | 22 | -------------------------------------------------------------------------------- /src/main/java/com/example/springposgres/model/CustomerUI.java: -------------------------------------------------------------------------------- 1 | package com.example.springposgres.model; 2 | 3 | public class CustomerUI { 4 | 5 | 6 | private String firstName; 7 | private String lastName; 8 | protected CustomerUI() { 9 | } 10 | 11 | public CustomerUI(String firstName, String lastName) { 12 | this.firstName = firstName; 13 | this.lastName = lastName; 14 | } 15 | 16 | public String getFirstName() { 17 | return firstName; 18 | } 19 | public void setFirstName(String firstName) { 20 | this.firstName = firstName; 21 | } 22 | public String getLastName() { 23 | return lastName; 24 | } 25 | public void setLastName(String lastName) { 26 | this.lastName = lastName; 27 | } 28 | 29 | public String toString() { 30 | return String.format("Customer[firstName='%s', lastName='%s']", firstName, lastName); 31 | } 32 | } -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | 2 | # Overview 3 | In this project, We will show how Spring boot and spring data jpa can be used to integrate with postgresql. 4 | 5 | 6 | ## Step 1 Download the code from github 7 | ```git clone https://github.com/RajeshBhojwani/springboot-postgresql.git``` 8 | 9 | ## Step 2 Build the project 10 | ```gradlew clean build``` 11 | 12 | ## Step 3 Launch the application 13 | ```java -jar java -jar build/libs/springposgres-0.0.1-SNAPSHOT.jar``` 14 | 15 | ## Step 4 Use Curl or Postman to test the REST apis created. 16 | 17 | 18 | ## APIs for Postgresql usage 19 | 1. Bulk upload of the customers using below api. No need to pass any data. 20 | 21 | http://localhost:9090/bulkcreate 22 | 23 | 2. POST call to insert one customer based on the JSON data passed. 24 | 25 | http://localhost:9090/create 26 | 27 | ### JSON data 28 | ``` 29 | { 30 | "firstName": "Sumit", 31 | "lastName": "Khan" 32 | } 33 | ``` 34 | 35 | 2. GET call to retrive all customers. 36 | 37 | http://localhost:9090/findall 38 | 39 | 3. GET call to search customer by id. 40 | http://localhost:9090/search/{id} 41 | 42 | 4. GET call to search customer by first name. 43 | http://localhost:9090/searchbyfirstname/{firstname} 44 | 45 | 46 | 47 | For detail explanation of this project check this blog -https://www.rajeshbhojwani.co.in/2019/01/spring-boot-and-postgresql.html 48 | 49 | 50 | 51 | 52 | -------------------------------------------------------------------------------- /src/main/java/com/example/springposgres/model/Customer.java: -------------------------------------------------------------------------------- 1 | package com.example.springposgres.model; 2 | 3 | import java.io.Serializable; 4 | 5 | import javax.persistence.Column; 6 | import javax.persistence.Entity; 7 | import javax.persistence.GeneratedValue; 8 | import javax.persistence.GenerationType; 9 | import javax.persistence.Id; 10 | import javax.persistence.Table; 11 | 12 | @Entity 13 | @Table(name = "customer") 14 | public class Customer implements Serializable { 15 | 16 | private static final long serialVersionUID = -2343243243242432341L; 17 | @Id 18 | @GeneratedValue(strategy = GenerationType.AUTO) 19 | private long id; 20 | 21 | @Column(name = "firstname") 22 | private String firstName; 23 | 24 | @Column(name = "lastname") 25 | private String lastName; 26 | 27 | protected Customer() { 28 | } 29 | 30 | public Customer(String firstName, String lastName) { 31 | this.firstName = firstName; 32 | this.lastName = lastName; 33 | } 34 | 35 | @Override 36 | public String toString() { 37 | return String.format("Customer[id=%d, firstName='%s', lastName='%s']", id, firstName, lastName); 38 | } 39 | public String getFirstName() { 40 | return firstName; 41 | } 42 | public void setFirstName(String firstName) { 43 | this.firstName = firstName; 44 | } 45 | public String getLastName() { 46 | return lastName; 47 | } 48 | public void setLastName(String lastName) { 49 | this.lastName = lastName; 50 | } 51 | } -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @if "%DEBUG%" == "" @echo off 2 | @rem ########################################################################## 3 | @rem 4 | @rem Gradle startup script for Windows 5 | @rem 6 | @rem ########################################################################## 7 | 8 | @rem Set local scope for the variables with windows NT shell 9 | if "%OS%"=="Windows_NT" setlocal 10 | 11 | set DIRNAME=%~dp0 12 | if "%DIRNAME%" == "" set DIRNAME=. 13 | set APP_BASE_NAME=%~n0 14 | set APP_HOME=%DIRNAME% 15 | 16 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 17 | set DEFAULT_JVM_OPTS= 18 | 19 | @rem Find java.exe 20 | if defined JAVA_HOME goto findJavaFromJavaHome 21 | 22 | set JAVA_EXE=java.exe 23 | %JAVA_EXE% -version >NUL 2>&1 24 | if "%ERRORLEVEL%" == "0" goto init 25 | 26 | echo. 27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 28 | echo. 29 | echo Please set the JAVA_HOME variable in your environment to match the 30 | echo location of your Java installation. 31 | 32 | goto fail 33 | 34 | :findJavaFromJavaHome 35 | set JAVA_HOME=%JAVA_HOME:"=% 36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 37 | 38 | if exist "%JAVA_EXE%" goto init 39 | 40 | echo. 41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 42 | echo. 43 | echo Please set the JAVA_HOME variable in your environment to match the 44 | echo location of your Java installation. 45 | 46 | goto fail 47 | 48 | :init 49 | @rem Get command-line arguments, handling Windows variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | 53 | :win9xME_args 54 | @rem Slurp the command line arguments. 55 | set CMD_LINE_ARGS= 56 | set _SKIP=2 57 | 58 | :win9xME_args_slurp 59 | if "x%~1" == "x" goto execute 60 | 61 | set CMD_LINE_ARGS=%* 62 | 63 | :execute 64 | @rem Setup the command line 65 | 66 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 67 | 68 | @rem Execute Gradle 69 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 70 | 71 | :end 72 | @rem End local scope for the variables with windows NT shell 73 | if "%ERRORLEVEL%"=="0" goto mainEnd 74 | 75 | :fail 76 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 77 | rem the _cmd.exe /c_ return code! 78 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 79 | exit /b 1 80 | 81 | :mainEnd 82 | if "%OS%"=="Windows_NT" endlocal 83 | 84 | :omega 85 | -------------------------------------------------------------------------------- /src/main/java/com/example/springposgres/controller/CustomerController.java: -------------------------------------------------------------------------------- 1 | package com.example.springposgres.controller; 2 | 3 | import java.util.ArrayList; 4 | import java.util.Arrays; 5 | import java.util.List; 6 | 7 | import com.example.springposgres.model.Customer; 8 | import com.example.springposgres.model.CustomerUI; 9 | import com.example.springposgres.repository.CustomerRepository; 10 | 11 | import org.springframework.beans.factory.annotation.Autowired; 12 | import org.springframework.web.bind.annotation.GetMapping; 13 | import org.springframework.web.bind.annotation.PathVariable; 14 | import org.springframework.web.bind.annotation.PostMapping; 15 | import org.springframework.web.bind.annotation.RequestBody; 16 | import org.springframework.web.bind.annotation.RequestMapping; 17 | import org.springframework.web.bind.annotation.RestController; 18 | 19 | 20 | @RestController 21 | public class CustomerController { 22 | @Autowired 23 | CustomerRepository repository; 24 | 25 | @GetMapping("/bulkcreate") 26 | public String bulkcreate(){ 27 | // save a single Customer 28 | repository.save(new Customer("Rajesh", "Bhojwani")); 29 | 30 | // save a list of Customers 31 | repository.saveAll(Arrays.asList(new Customer("Salim", "Khan") 32 | , new Customer("Rajesh", "Parihar") 33 | , new Customer("Rahul", "Dravid") 34 | , new Customer("Dharmendra", "Bhojwani"))); 35 | 36 | return "Customers are created"; 37 | } 38 | @PostMapping("/create") 39 | public String create(@RequestBody CustomerUI customer){ 40 | // save a single Customer 41 | repository.save(new Customer(customer.getFirstName(), customer.getLastName())); 42 | 43 | return "Customer is created"; 44 | } 45 | @GetMapping("/findall") 46 | public List findAll(){ 47 | 48 | List customers = repository.findAll(); 49 | List customerUI = new ArrayList<>(); 50 | 51 | for (Customer customer : customers) { 52 | customerUI.add(new CustomerUI(customer.getFirstName(),customer.getLastName())); 53 | } 54 | 55 | return customerUI; 56 | } 57 | 58 | @RequestMapping("/search/{id}") 59 | public String search(@PathVariable long id){ 60 | String customer = ""; 61 | customer = repository.findById(id).toString(); 62 | return customer; 63 | } 64 | 65 | @RequestMapping("/searchbyfirstname/{firstname}") 66 | public List fetchDataByLastName(@PathVariable String firstname){ 67 | 68 | List customers = repository.findByFirstName(firstname); 69 | List customerUI = new ArrayList<>(); 70 | 71 | for (Customer customer : customers) { 72 | customerUI.add(new CustomerUI(customer.getFirstName(),customer.getLastName())); 73 | } 74 | 75 | return customerUI; 76 | } 77 | } -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env sh 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Attempt to set APP_HOME 10 | # Resolve links: $0 may be a link 11 | PRG="$0" 12 | # Need this for relative symlinks. 13 | while [ -h "$PRG" ] ; do 14 | ls=`ls -ld "$PRG"` 15 | link=`expr "$ls" : '.*-> \(.*\)$'` 16 | if expr "$link" : '/.*' > /dev/null; then 17 | PRG="$link" 18 | else 19 | PRG=`dirname "$PRG"`"/$link" 20 | fi 21 | done 22 | SAVED="`pwd`" 23 | cd "`dirname \"$PRG\"`/" >/dev/null 24 | APP_HOME="`pwd -P`" 25 | cd "$SAVED" >/dev/null 26 | 27 | APP_NAME="Gradle" 28 | APP_BASE_NAME=`basename "$0"` 29 | 30 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 31 | DEFAULT_JVM_OPTS="" 32 | 33 | # Use the maximum available, or set MAX_FD != -1 to use that value. 34 | MAX_FD="maximum" 35 | 36 | warn () { 37 | echo "$*" 38 | } 39 | 40 | die () { 41 | echo 42 | echo "$*" 43 | echo 44 | exit 1 45 | } 46 | 47 | # OS specific support (must be 'true' or 'false'). 48 | cygwin=false 49 | msys=false 50 | darwin=false 51 | nonstop=false 52 | case "`uname`" in 53 | CYGWIN* ) 54 | cygwin=true 55 | ;; 56 | Darwin* ) 57 | darwin=true 58 | ;; 59 | MINGW* ) 60 | msys=true 61 | ;; 62 | NONSTOP* ) 63 | nonstop=true 64 | ;; 65 | esac 66 | 67 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 68 | 69 | # Determine the Java command to use to start the JVM. 70 | if [ -n "$JAVA_HOME" ] ; then 71 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 72 | # IBM's JDK on AIX uses strange locations for the executables 73 | JAVACMD="$JAVA_HOME/jre/sh/java" 74 | else 75 | JAVACMD="$JAVA_HOME/bin/java" 76 | fi 77 | if [ ! -x "$JAVACMD" ] ; then 78 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 79 | 80 | Please set the JAVA_HOME variable in your environment to match the 81 | location of your Java installation." 82 | fi 83 | else 84 | JAVACMD="java" 85 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 86 | 87 | Please set the JAVA_HOME variable in your environment to match the 88 | location of your Java installation." 89 | fi 90 | 91 | # Increase the maximum file descriptors if we can. 92 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then 93 | MAX_FD_LIMIT=`ulimit -H -n` 94 | if [ $? -eq 0 ] ; then 95 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 96 | MAX_FD="$MAX_FD_LIMIT" 97 | fi 98 | ulimit -n $MAX_FD 99 | if [ $? -ne 0 ] ; then 100 | warn "Could not set maximum file descriptor limit: $MAX_FD" 101 | fi 102 | else 103 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 104 | fi 105 | fi 106 | 107 | # For Darwin, add options to specify how the application appears in the dock 108 | if $darwin; then 109 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 110 | fi 111 | 112 | # For Cygwin, switch paths to Windows format before running java 113 | if $cygwin ; then 114 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 115 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 116 | JAVACMD=`cygpath --unix "$JAVACMD"` 117 | 118 | # We build the pattern for arguments to be converted via cygpath 119 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 120 | SEP="" 121 | for dir in $ROOTDIRSRAW ; do 122 | ROOTDIRS="$ROOTDIRS$SEP$dir" 123 | SEP="|" 124 | done 125 | OURCYGPATTERN="(^($ROOTDIRS))" 126 | # Add a user-defined pattern to the cygpath arguments 127 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 128 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 129 | fi 130 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 131 | i=0 132 | for arg in "$@" ; do 133 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 134 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 135 | 136 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 137 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 138 | else 139 | eval `echo args$i`="\"$arg\"" 140 | fi 141 | i=$((i+1)) 142 | done 143 | case $i in 144 | (0) set -- ;; 145 | (1) set -- "$args0" ;; 146 | (2) set -- "$args0" "$args1" ;; 147 | (3) set -- "$args0" "$args1" "$args2" ;; 148 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 149 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 150 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 151 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 152 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 153 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 154 | esac 155 | fi 156 | 157 | # Escape application args 158 | save () { 159 | for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done 160 | echo " " 161 | } 162 | APP_ARGS=$(save "$@") 163 | 164 | # Collect all arguments for the java command, following the shell quoting and substitution rules 165 | eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" 166 | 167 | # by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong 168 | if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then 169 | cd "$(dirname "$0")" 170 | fi 171 | 172 | exec "$JAVACMD" "$@" 173 | --------------------------------------------------------------------------------