diff --git a/spring-mvc-forms-thymeleaf/pom.xml b/spring-mvc-forms-thymeleaf/pom.xml index 408e7643d2..59130a0133 100644 --- a/spring-mvc-forms-thymeleaf/pom.xml +++ b/spring-mvc-forms-thymeleaf/pom.xml @@ -69,6 +69,7 @@ UTF-8 UTF-8 3.0.9.RELEASE + com.baeldung.sessionattrs.SessionAttrsApplication diff --git a/spring-mvc-forms-thymeleaf/src/main/java/com/baeldung/listbindingexample/Book.java b/spring-mvc-forms-thymeleaf/src/main/java/com/baeldung/listbindingexample/Book.java new file mode 100644 index 0000000000..823ff436fb --- /dev/null +++ b/spring-mvc-forms-thymeleaf/src/main/java/com/baeldung/listbindingexample/Book.java @@ -0,0 +1,73 @@ +package com.baeldung.listbindingexample; + +public class Book { + + private long id; + + private String title; + + private String author; + + public long getId() { + return id; + } + + public void setId(long id) { + this.id = id; + } + + public String getTitle() { + return title; + } + + public void setTitle(String title) { + this.title = title; + } + + public String getAuthor() { + return author; + } + + public void setAuthor(String author) { + this.author = author; + } + + @Override + public int hashCode() { + final int prime = 31; + int result = 1; + result = prime * result + ((author == null) ? 0 : author.hashCode()); + result = prime * result + (int) (id ^ (id >>> 32)); + result = prime * result + ((title == null) ? 0 : title.hashCode()); + return result; + } + + @Override + public boolean equals(Object obj) { + if (this == obj) + return true; + if (obj == null) + return false; + if (getClass() != obj.getClass()) + return false; + Book other = (Book) obj; + if (author == null) { + if (other.author != null) + return false; + } else if (!author.equals(other.author)) + return false; + if (id != other.id) + return false; + if (title == null) { + if (other.title != null) + return false; + } else if (!title.equals(other.title)) + return false; + return true; + } + + @Override + public String toString() { + return "Book [id=" + id + ", title=" + title + ", author=" + author + "]"; + } +} diff --git a/spring-mvc-forms-thymeleaf/src/main/java/com/baeldung/listbindingexample/BookService.java b/spring-mvc-forms-thymeleaf/src/main/java/com/baeldung/listbindingexample/BookService.java new file mode 100644 index 0000000000..770e86ad68 --- /dev/null +++ b/spring-mvc-forms-thymeleaf/src/main/java/com/baeldung/listbindingexample/BookService.java @@ -0,0 +1,10 @@ +package com.baeldung.listbindingexample; + +import java.util.List; + +public interface BookService { + + List findAll(); + + void saveAll(List books); +} diff --git a/spring-mvc-forms-thymeleaf/src/main/java/com/baeldung/listbindingexample/BooksCreationDto.java b/spring-mvc-forms-thymeleaf/src/main/java/com/baeldung/listbindingexample/BooksCreationDto.java new file mode 100644 index 0000000000..8e5654143a --- /dev/null +++ b/spring-mvc-forms-thymeleaf/src/main/java/com/baeldung/listbindingexample/BooksCreationDto.java @@ -0,0 +1,29 @@ +package com.baeldung.listbindingexample; + +import java.util.ArrayList; +import java.util.List; + +public class BooksCreationDto { + + private List books; + + public BooksCreationDto() { + this.books = new ArrayList<>(); + } + + public BooksCreationDto(List books) { + this.books = books; + } + + public List getBooks() { + return books; + } + + public void setBooks(List books) { + this.books = books; + } + + public void addBook(Book book) { + this.books.add(book); + } +} diff --git a/spring-mvc-forms-thymeleaf/src/main/java/com/baeldung/listbindingexample/Config.java b/spring-mvc-forms-thymeleaf/src/main/java/com/baeldung/listbindingexample/Config.java new file mode 100644 index 0000000000..ffba2cea2c --- /dev/null +++ b/spring-mvc-forms-thymeleaf/src/main/java/com/baeldung/listbindingexample/Config.java @@ -0,0 +1,33 @@ +package com.baeldung.listbindingexample; + +import org.springframework.context.annotation.Bean; +import org.springframework.context.annotation.Configuration; +import org.springframework.core.Ordered; +import org.springframework.web.servlet.config.annotation.EnableWebMvc; +import org.springframework.web.servlet.config.annotation.ViewControllerRegistry; +import org.springframework.web.servlet.config.annotation.WebMvcConfigurer; +import org.thymeleaf.templatemode.TemplateMode; +import org.thymeleaf.templateresolver.ClassLoaderTemplateResolver; +import org.thymeleaf.templateresolver.ITemplateResolver; + +@EnableWebMvc +@Configuration +public class Config implements WebMvcConfigurer { + + @Override + public void addViewControllers(ViewControllerRegistry registry) { + registry.addViewController("/").setViewName("index"); + registry.setOrder(Ordered.HIGHEST_PRECEDENCE); + } + + @Bean + public ITemplateResolver templateResolver() { + ClassLoaderTemplateResolver resolver + = new ClassLoaderTemplateResolver(); + resolver.setPrefix("templates/books/"); + resolver.setSuffix(".html"); + resolver.setTemplateMode(TemplateMode.HTML); + resolver.setCharacterEncoding("UTF-8"); + return resolver; + } +} diff --git a/spring-mvc-forms-thymeleaf/src/main/java/com/baeldung/listbindingexample/InMemoryBookService.java b/spring-mvc-forms-thymeleaf/src/main/java/com/baeldung/listbindingexample/InMemoryBookService.java new file mode 100644 index 0000000000..56ca41c51f --- /dev/null +++ b/spring-mvc-forms-thymeleaf/src/main/java/com/baeldung/listbindingexample/InMemoryBookService.java @@ -0,0 +1,44 @@ +package com.baeldung.listbindingexample; + +import org.springframework.stereotype.Service; + +import java.util.ArrayList; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.function.Function; +import java.util.stream.Collectors; + +@Service +public class InMemoryBookService implements BookService { + + static Map booksDB = new HashMap<>(); + + @Override + public List findAll() { + return new ArrayList(booksDB.values()); + } + + @Override + public void saveAll(List books) { + long nextId = getNextId(); + for (Book book : books) { + if (book.getId() == 0) { + book.setId(nextId++); + } + } + + Map bookMap = books.stream() + .collect(Collectors.toMap( + Book::getId, Function.identity())); + + booksDB.putAll(bookMap); + } + + private Long getNextId(){ + return booksDB.keySet().stream() + .mapToLong(value -> value) + .max() + .orElse(0) + 1; + } +} diff --git a/spring-mvc-forms-thymeleaf/src/main/java/com/baeldung/listbindingexample/ListBindingApplication.java b/spring-mvc-forms-thymeleaf/src/main/java/com/baeldung/listbindingexample/ListBindingApplication.java new file mode 100644 index 0000000000..af8608704b --- /dev/null +++ b/spring-mvc-forms-thymeleaf/src/main/java/com/baeldung/listbindingexample/ListBindingApplication.java @@ -0,0 +1,16 @@ +package com.baeldung.listbindingexample; + +import org.springframework.boot.SpringApplication; +import org.springframework.boot.autoconfigure.SpringBootApplication; +import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration; +import org.springframework.boot.autoconfigure.security.servlet.SecurityAutoConfiguration; + +@SpringBootApplication( + exclude = {SecurityAutoConfiguration.class, + DataSourceAutoConfiguration.class}) +public class ListBindingApplication { + + public static void main(String[] args) { + SpringApplication.run(ListBindingApplication.class, args); + } +} diff --git a/spring-mvc-forms-thymeleaf/src/main/java/com/baeldung/listbindingexample/MultipleBooksController.java b/spring-mvc-forms-thymeleaf/src/main/java/com/baeldung/listbindingexample/MultipleBooksController.java new file mode 100644 index 0000000000..2e177c7bbf --- /dev/null +++ b/spring-mvc-forms-thymeleaf/src/main/java/com/baeldung/listbindingexample/MultipleBooksController.java @@ -0,0 +1,59 @@ +package com.baeldung.listbindingexample; + +import org.springframework.beans.factory.annotation.Autowired; +import org.springframework.stereotype.Controller; +import org.springframework.ui.Model; +import org.springframework.web.bind.annotation.GetMapping; +import org.springframework.web.bind.annotation.ModelAttribute; +import org.springframework.web.bind.annotation.PostMapping; +import org.springframework.web.bind.annotation.RequestMapping; + +import java.util.ArrayList; +import java.util.List; + +@Controller +@RequestMapping("/books") +public class MultipleBooksController { + + @Autowired + private BookService bookService; + + @GetMapping(value = "/all") + public String showAll(Model model) { + model.addAttribute("books", bookService.findAll()); + + return "allBooks"; + } + + @GetMapping(value = "/create") + public String showCreateForm(Model model) { + BooksCreationDto booksForm = new BooksCreationDto(); + + for (int i = 1; i <= 3; i++) { + booksForm.addBook(new Book()); + } + + model.addAttribute("form", booksForm); + + return "createBooksForm"; + } + + @GetMapping(value = "/edit") + public String showEditForm(Model model) { + List books = new ArrayList<>(); + bookService.findAll().iterator().forEachRemaining(books::add); + + model.addAttribute("form", new BooksCreationDto(books)); + + return "editBooksForm"; + } + + @PostMapping(value = "/save") + public String saveBooks(@ModelAttribute BooksCreationDto form, Model model) { + bookService.saveAll(form.getBooks()); + + model.addAttribute("books", bookService.findAll()); + + return "redirect:/books/all"; + } +} diff --git a/spring-mvc-forms-thymeleaf/src/main/resources/templates/books/allBooks.html b/spring-mvc-forms-thymeleaf/src/main/resources/templates/books/allBooks.html new file mode 100644 index 0000000000..9f75bec8bd --- /dev/null +++ b/spring-mvc-forms-thymeleaf/src/main/resources/templates/books/allBooks.html @@ -0,0 +1,40 @@ + + + All Books + + + +
+
+
+

Books

+
+
+
+
+ + + + + + + + + + + + + + + + +
Title Author
No Books Available
Title Author
+
+ +
+
+ + diff --git a/spring-mvc-forms-thymeleaf/src/main/resources/templates/books/createBooksForm.html b/spring-mvc-forms-thymeleaf/src/main/resources/templates/books/createBooksForm.html new file mode 100644 index 0000000000..9f88762882 --- /dev/null +++ b/spring-mvc-forms-thymeleaf/src/main/resources/templates/books/createBooksForm.html @@ -0,0 +1,45 @@ + + + Add Books + + + +
+
+
+

Add Books

+
+
+
+
+ Back to All Books +
+
+ + + + + + + + + + + + + + + + + +
Title Author
+
+
+
+
+
+ + diff --git a/spring-mvc-forms-thymeleaf/src/main/resources/templates/books/editBooksForm.html b/spring-mvc-forms-thymeleaf/src/main/resources/templates/books/editBooksForm.html new file mode 100644 index 0000000000..9278d98018 --- /dev/null +++ b/spring-mvc-forms-thymeleaf/src/main/resources/templates/books/editBooksForm.html @@ -0,0 +1,49 @@ + + + Edit Books + + + +
+
+
+

Add Books

+
+
+
+
+ Back to All Books +
+
+ + + + + + + + + + + + + + + + + + + +
Title Author
+
+
+
+
+
+ + diff --git a/spring-mvc-forms-thymeleaf/src/main/resources/templates/books/index.html b/spring-mvc-forms-thymeleaf/src/main/resources/templates/books/index.html new file mode 100644 index 0000000000..59780b84aa --- /dev/null +++ b/spring-mvc-forms-thymeleaf/src/main/resources/templates/books/index.html @@ -0,0 +1,22 @@ + + + + Binding a List in Thymeleaf + + + + + + + +
+

+

Binding a List in Thymeleaf - Example

+

+
+ + +