Gson example

vogella · vogella · commit 75e9b0ad8bfc · 2014-11-18T12:41:33.000+01:00
diff --git a/com.vogella.java.library.gson/.classpath b/com.vogella.java.library.gson/.classpath
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="lib" path="libs/gson-2.3.jar"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>
diff --git a/com.vogella.java.library.gson/.project b/com.vogella.java.library.gson/.project
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>com.vogella.java.library.gson</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>
diff --git a/com.vogella.java.library.gson/libs/gson-2.3.jar b/com.vogella.java.library.gson/libs/gson-2.3.jar
diff --git a/com.vogella.java.library.gson/src/com/vogella/java/library/gson/MainTest.java b/com.vogella.java.library.gson/src/com/vogella/java/library/gson/MainTest.java
@@ -0,0 +1,29 @@
+package com.vogella.java.library.gson;
+
+import java.lang.reflect.Type;
+import java.util.ArrayList;
+import java.util.List;
+
+import com.google.gson.Gson;
+import com.google.gson.reflect.TypeToken;
+
+
+
+public class MainTest {
+	
+	public static void main(String[] args) {
+		List<Task> list = new ArrayList<Task>(); 
+		for (int i = 0; i < 20; i++) {
+			list.add(new Task(i, "Test1", "Test2", Task.Status.ASSIGNED, 10));
+		} 
+		Gson gson = new Gson();
+		Type type = new TypeToken<List<Task>>() {}.getType();
+		String json = gson.toJson(list, type);
+		System.out.println(json);
+		List<Task> fromJson = gson.fromJson(json, type);
+		
+		for (Task task : fromJson) {
+			System.out.println(task);
+		}
+	}
+}
diff --git a/com.vogella.java.library.gson/src/com/vogella/java/library/gson/Task.java b/com.vogella.java.library.gson/src/com/vogella/java/library/gson/Task.java
@@ -0,0 +1,71 @@
+package com.vogella.java.library.gson;
+
+public class Task {
+	private final long id;
+	private String summary;
+	private String description;
+	private Status status;
+	private int priority;
+		
+	public enum Status {
+		CREATED, ASSIGNED, CANCELED, COMPLETED 
+	}
+	
+
+	
+	
+	public Task(long id, String summary, String description, Status status,
+			int priority) {
+		this.id = id;
+		this.summary = summary;
+		this.description = description;
+		this.status = status;
+		this.priority = priority;
+	}
+
+	public long getId() {
+		return id;
+	}
+
+	public String getSummary() {
+		return summary;
+	}
+
+	public void setSummary(String summary) {
+		this.summary = summary;
+	}
+
+	public String getDescription() {
+		return description;
+	}
+
+	public void setDescription(String description) {
+		this.description = description;
+	}
+
+	public Status getStatus() {
+		return status;
+	}
+
+	public void setStatus(Status status) {
+		this.status = status;
+	}
+
+	public int getPriority() {
+		return priority;
+	}
+
+	public void setPriority(int priority) {
+		this.priority = priority;
+	}
+
+	@Override
+	public String toString() {
+		return "Task [id=" + id + ", summary=" + summary + ", description="
+				+ description + ", status=" + status + ", priority=" + priority
+				+ "]";
+	}
+	
+	
+	
+}
